UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                   FORM N-CSR

                   CERTIFIED SHAREHOLDER REPORT OF REGISTERED
                         MANAGEMENT INVESTMENT COMPANIES

                  Investment Company Act file number: 811-21694
                        ---------------------------------

                      MELLON OPTIMA L/S STRATEGY FUND, LLC
               --------------------------------------------------
               (Exact name of registrant as specified in charter)

                           One Boston Place, 024-0242
                           Boston, Massachusetts 02108
               ---------------------------------------------------
               (Address of principal executive offices) (Zip code)

                           Christopher P. Harvey, Esq.
                    Wilmer Cutler Pickering Hale and Dorr LLP
                                 60 State Street
                           Boston, Massachusetts 02109
                            -------------------------
                     (Name and address of agent for service)

       Registrant's telephone number, including area code: (877) 257-0004
               -------------------------------------------------

                        Date of fiscal year end: March 31
                       -----------------------------------

                  Date of reporting period: September 30, 2007
                        --------------------------------




ITEM 1.  REPORTS TO STOCKHOLDERS.

         The Semi-Annual Report to Investors is attached herewith.

                        SUPPLEMENT DATED DECEMBER 4, 2007

                                     TO THE

                         SEMI-ANNUAL REPORT TO INVESTORS

                                   (UNAUDITED)

                                       OF

                       MELLON OPTIMA L/S STRATEGY FUND LLC

                FOR THE SIX MONTH PERIOD ENDED SEPTEMBER 30, 2007


- --------------------------------------------------------------------------------

THE FOLLOWING  MODIFIES THE  INFORMATION  ON PAGE 13 UNDER THE HEADING "NOTES TO
FINANCIAL  STATEMENTS  (UNAUDITED)"  IN THE ABOVE NOTED  SEMI-ANNUAL  REPORT AND
REPLACES ANY CONTRARY INFORMATION SET FORTH IN THE REPORT.

(9)      INTEREST REPURCHASES:

Pursuant  to its June 30,  2007  tender  offer,  it was  reported  that the Fund
received and accepted tender requests for Fund interests with an estimated value
of $14,988,028.  Due to an  administrative  error,  this figure was not reported
accurately and is hereby replaced with  $14,988,127,  the actual estimated value
of the accepted tenders.





     INVESTORS SHOULD RETAIN THIS SUPPLEMENT WITH THE SEMI-ANNUAL REPORT TO
                         INVESTORS FOR FUTURE REFERENCE

                      MELLON OPTIMA L/S STRATEGY FUND, LLC














                         SEMI-ANNUAL REPORT TO INVESTORS

                FOR THE SIX MONTH PERIOD ENDED SEPTEMBER 30, 2007

                                   (unaudited)





This report and the financial  statements contained herein are submitted for the
general  information  of the investors of Mellon Optima L/S Strategy  Fund,  LLC
("the Fund").  This report is not  authorized  for  distribution  to prospective
investors in the Fund unless preceded or accompanied by the Fund's  Confidential
Offering Memorandum (the "Offering Memorandum").

Any information in this investor report  regarding  market or economic trends or
the  factors  influencing  the  Fund's  historical  or  future  performance  are
statements  of the  opinion of Fund  management  as of the date of this  report.
These  statements  should  not be  relied  upon  for any  other  purposes.  Past
performance  is no guarantee of future  results,  and there is no guarantee that
market forecasts discussed will be realized.

The Fund files its complete  schedule of portfolio  holdings with the Securities
and Exchange  Commission  (SEC) for the first and third  quarters of each fiscal
year  on  Form  N-Q.   Forms  N-Q  are  available  on  the  SEC's  web  site  at
http://www.sec.gov. The Fund's Forms N-Q may be reviewed and copied at the SEC's
Public Reference Room in Washington D.C. Information  regarding the operation of
the SEC's Public  Reference Room may be obtained by calling  1-800-SEC-0330.  To
request a copy of the most recent quarterly holdings report,  semi-annual report
or annual report, call 1-877-257-0004.

To view the Fund's  proxy  voting  guidelines  and proxy  voting  record for the
12-month  period  ended June 30 visit the SEC's web site at  http://www.sec.gov.
You may also call  1-877-257-0004  to  request  a free copy of the proxy  voting
guidelines.

The Fund is available  only to investment  management  clients of the Management
Group of The Bank of New York  Mellon  Corporation,  and only if they have a net
worth of more than $1  million  and meet  other  criteria  as  described  in the
Offering Memorandum. Interests in the Fund are not freely transferable,  however
liquidity may be available  through  repurchase offers made at the discretion of
the Board of Directors of the Fund.

As with any speculative  investment  program,  it is possible to incur losses as
well as gains through an investment in the Fund. There can be no assurances that
the Fund will achieve its  objective.  The Offering  Memorandum  contains a more
complete   description  of  the  risks   associates  with  the  Fund.  Under  no
circumstances  should a prospective investor elect to invest in the Fund without
reviewing the Offering Memorandum.





                                           MELLON OPTIMA L/S STRATEGY FUND, LLC


                                     PORTFOLIO SUMMARY - SEPTEMBER 30, 2007 (UNAUDITED)
- -------------------------------------------------------------------------------------------------------------------------

                                                                                                        PERCENTAGE OF
INVESTMENT FUNDS                                    COST                        VALUE                     NET ASSETS
- -------------------------------------------------------------------------------------------------------------------------
                                                                                                          
Opportunistic                                $       139,612,937          $       176,670,774                      29.4%
Growth                                               139,610,286                  175,737,416                      29.2%
Value                                                131,413,210                  166,499,435                      27.7%
Global                                                60,000,000                   72,265,224                      12.0%
                                             --------------------        ---------------------        -------------------
TOTAL INVESTMENT FUNDS                       $       470,636,433          $       591,172,849                      98.3%
                                             ====================        =====================        ===================











    THE ACCOMPANYING NOTES ARE AN INTEGRAL PART OF THE FINANCIAL STATEMENTS.


                                       1



                                             MELLON OPTIMA L/S STRATEGY FUND, LLC


                                     SCHEDULE OF INVESTMENTS - SEPTEMBER 30, 2007 (UNAUDITED)
- -------------------------------------------------------------------------------------------------------------------------

                                                                                             PERCENTAGE OF
INVESTMENT FUNDS                                     COST                  VALUE               NET ASSETS    LIQUIDITY+
- -------------------------------------------------------------------------------------------------------------------------
                                                                                                 
OPPORTUNISTIC
Hunter Global Investors Fund I L.P.             $    19,127,412       $    25,112,463              4.2%      Quarterly
Impala Fund LP                                       22,000,000            29,900,663              5.0%      Quarterly
Karsh Capital II, LP                                 28,125,331            35,701,744              5.9%      Quarterly
Kingdon Associates                                   25,283,055            33,738,583              5.6%      Quarterly
Raptor Global Fund L.P.                              23,077,139            25,474,419              4.2%      Quarterly
Sage Opportunity Fund (QP), L.P.                     22,000,000            26,742,902              4.5%      Quarterly
                                                ----------------      ----------------      ------------
                                                    139,612,937           176,670,774             29.4%
                                                ----------------      ----------------      ------------
GROWTH
Alydar QP Fund, L.P.                                 20,570,236            25,876,577              4.3%      Quarterly
Chilton QP Investment Partners, L.P.                 21,000,000            24,401,531              4.1%      Annually
Copper Arch Fund, L.P.                               21,000,000            24,272,908              4.0%      Quarterly
Highbridge Long/Short Equity Fund, L.P.              21,643,955            29,406,232              4.9%      Quarterly
Intrepid Capital Fund (QP), L.P.                     16,432,041            19,537,996              3.2%      Quarterly
Maverick Fund USA, Ltd.                              18,964,054            23,238,622              3.9%      Annually
Pequot Capital                                       20,000,000            29,003,550              4.8%      Annually
                                                ----------------      ----------------      ------------
                                                    139,610,286           175,737,416             29.2%
                                                ----------------      ----------------      ------------
VALUE
Amici Qualified Associates L.P.                      25,173,447            28,550,591              4.8%      Quarterly
Clovis Capital Partners Institutional, L.P.          23,247,705            29,000,178              4.8%      Quarterly
Delta Institutional, L.P.                            19,624,302            22,957,050              3.8%      Quarterly
Kinetics Institutional Partners, L.P.                22,000,000            34,287,244              5.7%      Quarterly
Shoshone Partners, L.P.                              17,299,000            21,473,100              3.6%      Annually
Thruway Partners, L.P.                               24,068,756            30,231,272              5.0%      Quarterly
                                                ----------------      ----------------      ------------
                                                    131,413,210           166,499,435             27.7%
                                                ----------------      ----------------      ------------
GLOBAL
Asian Century Quest Fund (QP), L.P.                  19,000,000            24,741,814              4.1%      Quarterly
Calypso Qualified Partners, L.P.                     18,500,000            21,627,581              3.6%      Monthly
Lansdowne European Strategic Equity Fund, L.P.       22,500,000            25,895,829              4.3%      Monthly
                                                ----------------      ----------------      ------------
                                                     60,000,000            72,265,224             12.0%
                                                ----------------      ----------------      ------------
TOTAL INVESTMENT FUNDS                              470,636,433           591,172,849             98.3%
                                                ----------------      ----------------      ------------

AFFILIATED INVESTMENT
Dreyfus Institutional Preferred Plus Money
  Market Fund                                        10,902,049            10,902,049              1.8%      Daily
                                                ----------------      ----------------      ------------
TOTAL INVESTMENTS                               $   481,538,482           602,074,898            100.1%
                                                ================      ----------------      ------------
LIABILITIES IN EXCESS OF OTHER ASSETS                                        (390,669)            (0.1)%
                                                                      ----------------      ------------
TOTAL NET ASSETS                                                      $   601,684,229            100.0%
                                                                      ================      ============


+ The Investment Funds provide for periodic redemptions, with lock-up provisions
up to two years from initial investment.
The liquidity provisions shown in the table apply after any applicable lock-up
provisions.



    THE ACCOMPANYING NOTES ARE AN INTEGRAL PART OF THE FINANCIAL STATEMENTS.


                                       2





                                            MELLON OPTIMA L/S STRATEGY FUND, LLC

                                             STATEMENT OF ASSETS AND LIABILITIES
                                               SEPTEMBER 30, 2007 (UNAUDITED)
- ------------------------------------------------------------------------------------------------------------------------
                                                                                                 
ASSETS
     Investments in funds, at value (Cost at $470,636,433) (Note 2A)                                   $    591,172,849
     Investments in affiliated issuers, at value (Cost at $10,902,049) (Note 2F)                             10,902,049
     Advance investments in funds, at value (Note 4)                                                          7,000,000
     Prepaid expenses                                                                                            86,022
                                                                                                       -----------------
        Total assets                                                                                        609,160,920

LIABILITIES
     Proceeds from sale of interests received in advance (Note 10)               $    4,041,000
     Payable for repurchase of interests (Note 9)                                       815,949
     Accrued investment advisory fees (Note 3)                                        2,191,162
     Accrued accounting and administration fees (Note 3)                                197,588
     Accrued professional fees                                                          206,515
     Accrued Directors' fees (Note 3)                                                    15,967
     Accrued Chief Compliance Officer fees (Note 3)                                       2,219
     Accrued custody fees (Note 3)                                                        3,129
     Other accrued expenses and liabilities                                               3,162
                                                                                 ---------------
        Total liabilities                                                                                     7,476,691
                                                                                                       -----------------

NET ASSETS                                                                                             $    601,684,229
                                                                                                       =================

INVESTORS' CAPITAL
     Net capital contributions                                                                         $    481,147,813
     Net unrealized appreciation                                                                            120,536,416
                                                                                                       -----------------
INVESTORS' CAPITAL                                                                                     $    601,684,229
                                                                                                       =================




    THE ACCOMPANYING NOTES ARE AN INTEGRAL PART OF THE FINANCIAL STATEMENTS.


                                       3




                                           MELLON OPTIMA L/S STRATEGY FUND, LLC

                                                  STATEMENT OF OPERATIONS
                               FOR THE SIX MONTH PERIOD ENDED SEPTEMBER 30, 2007 (UNAUDITED)
- ------------------------------------------------------------------------------------------------------------------------
                                                                                                 
INVESTMENT INCOME
     Dividend income from affiliated investments (Note 2F)                                              $       470,264

EXPENSES
     Investment advisory fee (Note 3)                                          $       4,341,580
     Accounting, administration and investor services fees (Note 3)                      291,905
     Audit and tax service fees                                                          114,150
     Insurance expense                                                                    83,763
     Legal fees                                                                           58,200
     Directors' fees (Note 3)                                                             28,150
     Chief Compliance Officer fees (Note 3)                                               14,250
     Custody fees (Note 3)                                                                 8,693
     Miscellaneous expenses                                                               12,050
                                                                               ------------------
        Total expenses                                                                                        4,952,741
                                                                                                        ----------------
              Net investment loss                                                                            (4,482,477)

REALIZED AND UNREALIZED GAIN
     Net change in unrealized appreciation
         on investments in portfolio funds                                            43,900,055
                                                                               ------------------
              Net realized and unrealized gain                                                               43,900,055
                                                                                                        ----------------

NET INCREASE IN INVESTORS' CAPITAL DERIVED FROM INVESTMENT OPERATIONS                                   $    39,417,578
                                                                                                        ================





    THE ACCOMPANYING NOTES ARE AN INTEGRAL PART OF THE FINANCIAL STATEMENTS.


                                       4




                                            MELLON OPTIMA L/S STRATEGY FUND, LLC


                                         STATEMENTS OF CHANGES IN INVESTORS' CAPITAL
- -------------------------------------------------------------------------------------------------------------------------

                                                                              FOR THE
                                                                              SIX MONTH                     FOR THE
                                                                            PERIOD ENDED                   YEAR ENDED
                                                                         9/30/2007 (UNAUDITED)           MARCH 31, 2007
                                                                       ------------------------      --------------------
                                                                                               
INCREASE IN INVESTORS' CAPITAL FROM
INVESTMENT OPERATIONS
    Net investment loss                                                $            (4,482,477)      $        (7,469,697)
    Net realized loss on portfolio funds sold                                               --                  (394,450)
    Net change in unrealized appreciation
        on investments in portfolio funds                                           43,900,055                40,347,273
                                                                       ------------------------      --------------------
        Net Increase in Investors' Capital Derived
             from Operations                                                        39,417,578                32,483,126
                                                                       ------------------------      --------------------

CAPITAL TRANSACTIONS
    Proceeds from sale of interests                                                 42,749,662               219,625,250
    Repurchase of interests                                                        (18,353,356)              (17,399,792)
                                                                       ------------------------      --------------------
        Net Increase in Investors' Capital Derived from
             Capital Transactions                                                   24,396,306               202,225,458
                                                                       ------------------------      --------------------

TOTAL INCREASE IN INVESTORS' CAPITAL                                                63,813,884               234,708,584

INVESTORS' CAPITAL
    At beginning of period                                                         537,870,345               303,161,761
                                                                       ------------------------      --------------------
    At end of period                                                   $           601,684,229       $       537,870,345
                                                                       ========================      ====================



Amount designated as "-" is $0 or has been rounded to $0.







    THE ACCOMPANYING NOTES ARE AN INTEGRAL PART OF THE FINANCIAL STATEMENTS.


                                       5



                                    MELLON OPTIMA L/S STRATEGY FUND, LLC


                                            FINANCIAL HIGHLIGHTS
- -------------------------------------------------------------------------------------------------------


                                                              FOR THE
                                                             SIX MONTH                  FOR THE
                                                            PERIOD ENDED               YEAR ENDED
                                                       9/30/2007 (UNAUDITED)         MARCH 31, 2007
                                                      -----------------------    ----------------------
                                                                                         
TOTAL RETURN                                                         7.10% (1)                 5.96%
RATIOS TO AVERAGE NET ASSETS:
    Expenses                                                         1.73% (2)(3)              1.74% (2)
    Net Investment loss                                             (1.57%)(3)                (1.63%)
PORTFOLIO TURNOVER RATE                                                 0% (4)                    2%
NET ASSETS, END OF PERIOD (000'S OMITTED)                         $601,684                  $537,870



<FN>
(1) Total return is for the period indicated and has not been annualized.
(2) Expense ratios of the underlying funds are not included in the expense ratio.
(3) Annualized.
(4) Not annualized.
</FN>




    THE ACCOMPANYING NOTES ARE AN INTEGRAL PART OF THE FINANCIAL STATEMENTS.


                                       6



                                  MELLON OPTIMA L/S STRATEGY FUND, LLC

                                         STATEMENT OF CASH FLOWS
                      FOR THE SIX MONTH PERIOD ENDED SEPTEMBER 30, 2007 (UNAUDITED)
- -----------------------------------------------------------------------------------------------------------
                                                                                       
CASH FLOWS FROM OPERATING ACTIVITIES
     Net increase in investors' capital resulting from operations                         $     39,417,578
     Adjustments to reconcile net increase in investors' capital
         from operations to net cash used in operating activities:
        Purchases of long-term investments                                                     (22,000,000)
        Purchases of short-term investments                                                    (27,803,289)
        Proceeds from sale of short-term investments                                            31,151,241
        Net change in unrealized appreciation on investments                                   (43,900,055)
        Decrease in advance investments in funds                                                 1,000,000
        Decrease in receivable for investments sold                                                699,230
        Decrease in prepaid expenses                                                                83,763
        Increase in accrued investment advisor fees                                                859,763
        Decrease in accrued professional fees                                                      (47,045)
        Increase in accrued accounting and administrative fees                                      59,024
        Increase in accrued Directors' fees                                                          4,150
        Decrease in accrued Chief Compliance Officer fees                                             (343)
        Increase in accrued custody fees                                                             1,716
        Decrease in other accrued expense and liabilities                                           (2,264)
                                                                                          -----------------
              Net cash used in operating activities                                            (20,476,531)
                                                                                          -----------------

CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from sale of interests                                                                 38,886,661
Repurchase of interests                                                                        (18,410,130)
                                                                                          -----------------
              Net cash provided by financing activities                                         20,476,531
                                                                                          -----------------

Net change in cash                                                                                      --
                                                                                          -----------------
Cash at beginning of year                                                                               --
                                                                                          -----------------
Cash at end of year                                                                       $             --
                                                                                          =================



    THE ACCOMPANYING NOTES ARE AN INTEGRAL PART OF THE FINANCIAL STATEMENTS.


                                       7


                      MELLON OPTIMA L/S STRATEGY FUND, LLC

                    NOTES TO FINANCIAL STATEMENTS (UNAUDITED)

(1) ORGANIZATION:

Mellon  Optima L/S Strategy  Fund,  LLC (the "Fund") was  organized as a limited
liability  company  under  the laws of  Delaware  on  December  14,  2004 and is
registered  under the  Investment  Company  Act of 1940,  as amended  (the "1940
Act"), as a closed-end, non-diversified, management investment company. The Fund
commenced operations on May 2, 2005.

The Fund's  investment  objective is to seek capital  appreciation over the long
term by attempting to maximize risk-adjusted returns while minimizing volatility
and  maintaining a low  correlation to the S&P 500 Index.  The Fund is a fund of
hedge  funds  that  seeks to  achieve  its  objective  by  deploying  its assets
primarily among a select group of portfolio managers who over time have produced
attractive  returns  principally  in the U.S.  equity  markets by  employing  an
investing style known as "long/short." This style combines long investments with
short  sales in the pursuit of  opportunities  in rising or  declining  markets.
Generally,  such portfolio  managers conduct their  investment  programs through
unregistered  investment vehicles and in other registered  investment  companies
(collectively,  the "Investment  Funds"), in which the Fund invests as a limited
partner, member or shareholder along with other investors.

The Fund's Board of Directors (the  "Directors") has overall  responsibility  to
manage and control the business  affairs of the Fund,  including  the  exclusive
authority to oversee and to establish policies regarding the management, conduct
and operation of the Fund's  business.  The Directors  have engaged Mellon Hedge
Advisors LLC (the "Adviser"),  a Delaware limited liability company,  to provide
investment  advice  regarding  the  selection  of  Investment  Funds  and  to be
responsible  for the  day-to-day  management  of the  Fund.  The  Adviser  is an
indirect  wholly  owned  subsidiary  of The Bank of New York Mellon  Corporation
("BNY Mellon"),  and is registered as an investment adviser under the Investment
Advisers Act of 1940, as amended (the "Advisers  Act").  The Adviser has engaged
Optima  Fund  Management  LLC  (the  "Sub-Investment   Adviser"),  a  registered
investment adviser under the Advisers Act, to assist it in performing certain of
its duties.

Interests are offered solely to eligible  investment  management  clients of the
Wealth  Management  Group  of BNY  Mellon  ("Investors")  in  private  placement
transactions  exempt from  registration  under the  Securities  Act of 1933,  as
amended (the "1933 Act").  Initial and additional  applications for interests in
the Fund by  Investors  may be accepted at such times as the Fund may  determine
and are generally  accepted  monthly.  The Fund reserves the right to reject any
application for interests in the Fund.

Interests of the Fund are not  redeemable.  The Fund from time to time may offer
to repurchase  interests pursuant to written tenders.  These repurchases will be
made at such times and on such terms as may be determined by the  Directors,  in
their  complete  and  exclusive  discretion.  The Adviser  expects  that it will
recommend to the  Directors  that the Fund offer to  repurchase  interests  from
Investors  twice each calendar year,  near mid-year and year-end.  Investors can
transfer or assign  their  membership  interests  only (i) by  operation  of law
pursuant to the death, bankruptcy,  insolvency or dissolution of an Investor, or
(ii) with the written consent of the Adviser,  which may be withheld in its sole
and absolute discretion.

(2) SIGNIFICANT ACCOUNTING POLICIES:

The following is a summary of significant  accounting  policies  followed by the
Fund  in the  preparation  of  its  financial  statements.  The  preparation  of
financial statements in accordance with accounting principles generally accepted
in the United  States of  America  requires  management  to make  estimates  and
assumptions  that affect the reported  amounts and  disclosures in the financial
statements. Actual results could differ from those estimates.


                                        8


A. VALUATION OF THE FUND AND ITS INVESTMENTS

Net asset value of the Fund will be  determined  by or at the  direction  of the
Adviser as of the close of business at the end of each calendar month and on any
other  date the  Directors  may  designate  in  accordance  with  the  valuation
principles set forth below or as may be determined from time to time pursuant to
policies established by the Directors.

The Directors have approved procedures pursuant to which the Fund will value its
investments  in  Investment  Funds  at fair  value.  In  accordance  with  these
procedures,  fair  value as of the end of each  calendar  month and on any other
date the Directors may designate and ordinarily will be the value  determined as
of such period for each Investment Fund in accordance with the Investment Fund's
valuation  policies  and  reported  at the time of the  Fund's  valuation.  As a
general matter, the fair value of the Fund's interest in an Investment Fund will
represent  the amount that the Fund could  reasonably  expect to receive from an
Investment  Fund if the Fund's  interest were redeemed at the time of valuation,
based on information  reasonably available at the time the valuation is made and
that  the  Fund  believes  to be  reliable.  All  valuations  utilize  financial
information  supplied by each Investment Fund and are net of management fees and
performance  incentive  fees or  allocations  payable to the  Investment  Funds'
managers or pursuant to the Investment Funds'  agreements.  In the event that an
Investment Fund does not report a value to the Fund on a timely basis at the end
of each  calendar  month,  the  Fund  would  determine  the  fair  value of such
Investment Fund based on the most recent value reported by the Investment  Fund,
as well any other relevant information available at the time the Fund values its
portfolio.

Short-term  instruments  with less than sixty days  remaining  to  maturity  are
valued at amortized cost, which approximates  market value. If the Fund acquires
a short-term  instrument with more than sixty days remaining to its maturity, it
is valued at current  market  value until the sixtieth day prior to maturity and
will then be valued at  amortized  cost upon the value on such date  unless  the
Board  determines  during such  sixty-day  period that  amortized  cost does not
represent fair value.

Distributions received or withdrawals from Investment Funds, whether in the form
of cash or  securities,  are first  applied as a reduction  of the  investment's
cost.

B. SECURITIES TRANSACTIONS AND INCOME

Securities  transactions  are recorded as of the trade date.  Interest income is
recorded on the accrual basis.  Realized gains and losses from  Investment  Fund
transactions  are calculated on the identified cost basis.  The Investment Funds
in which the Fund invests do not regularly  distribute income and realized gains
from their  underlying  investment  activity.  Such  undistributed  amounts  are
captured  in the  value  of the  Investment  Funds  in the  form  of  unrealized
appreciation.

C. FUND COSTS

The Adviser bore the non-recurring  initial offering and organizational costs of
the Fund.  The Fund bears all expenses  incurred in the ongoing  business of the
Fund  including,  but not  limited  to, the  following:  all costs and  expenses
related to portfolio  transactions  and positions for the Fund's account;  legal
fees; accounting fees; costs of computing the Fund's net asset value,  including
valuation services provided by third parties;  costs of insurance; a portion, as
determined  by the  Board,  of the  compensation  payable  to the  Fund's  Chief
Compliance  Officer;  certain  printing  costs;  and expenses of meetings of the
Board and Investors.



                                        9


                      MELLON OPTIMA L/S STRATEGY FUND, LLC

                    NOTES TO FINANCIAL STATEMENTS (UNAUDITED)

D. INCOME TAXES

The  Fund  is  treated  as  a  partnership  for  Federal  income  tax  purposes.
Accordingly, no provision is made by the Fund for Federal or state income taxes.
For income tax purposes,  each Investor will be treated as a partner of the Fund
and,  as such,  will be taxed  upon its  distributive  share of each item of the
Fund's income,  gain, loss and deductions  allocated to the Fund (including from
investments in other partnerships) for each taxable year of the Fund ending with
or within the Investor's taxable year. Each item will have the same character to
an Investor,  and will  generally  have the same source (either United States or
foreign),  as though the Investor  realized the item  directly.  Investors  must
report these items  regardless of the extent to which,  or whether,  the Fund or
Investors  receive cash  distributions for such taxable year, and thus may incur
income tax liabilities unrelated to any distributions to or from the Fund.

In  July  2006,  the  Financial   Accounting  Standards  Board  ("FASB")  issued
Interpretation No. 48 ("FIN 48"),  "Accounting for Uncertainty in Income Taxes -
an  Interpretation  of FASB  Statement  No.  109"  (the  "Interpretation").  The
Interpretation  establishes for all entities,  including  pass-through  entities
such as the Fund, a minimum threshold for financial statement recognition of the
benefit of positions taken in filing tax returns (including whether an entity is
taxable  in a  particular  jurisdiction),  and  requires  certain  expanded  tax
disclosures.  Adoption of FIN 48 is required  for fiscal years  beginning  after
December 15, 2006 and is to be applied to all open tax years as of the effective
date. Management has evaluated the implications of FIN 48 and determined that it
will not have any impact on the financial statements.

The cost of investments for Federal income tax purposes is adjusted for items of
accumulated  taxable income allocated to the Fund from the Investment Funds. The
allocated taxable income is reported to the Fund by the Investment Funds on each
calendar  year  Schedules  K-1. The aggregate  cost of Investment  Funds and the
gross  unrealized  appreciation and depreciation on Investment Funds for federal
income tax purposes as of September 30, 2007 are noted below.

Federal tax cost of investment funds             $ 481,538,482
                                               ----------------
Gross unrealized appreciation                      120,536,416
Gross unrealized depreciation                               --
                                               ----------------
Net unrealized appreciation                      $ 120,536,416
                                               ================

E. USE OF ESTIMATES

The  preparation  of financial  statements  in  conformity  with U.S.  generally
accepted  accounting   principles  requires  the  Fund  to  make  estimates  and
assumptions  that affect the amounts  reported in the financial  statements  and
accompanying  notes. The Fund believes that the estimates  utilized in preparing
the Fund's  financial  statements are reasonable  and prudent;  however,  actual
results could differ from these estimates.

F. SHORT-TERM INVESTMENTS

Short-term  investments  consist of liquid  investments  with maturities of less
than 90  days.  The Fund  had  $10,902,049  invested  in  Dreyfus  Institutional
Preferred Plus Money Market Fund, an affiliated institutional money market fund,
including  $750,428 of segregated  assets,  which represents 5% of the estimated
value of the June 30, 2007 tender offer. See note 9.




                                       10


                      MELLON OPTIMA L/S STRATEGY FUND, LLC

                    NOTES TO FINANCIAL STATEMENTS (UNAUDITED)


(3) INVESTMENT ADVISORY FEE AND OTHER TRANSACTIONS WITH AFFILIATES:

The Adviser  provides  investment  advisory  services to the Fund pursuant to an
Investment  Advisory  Agreement.  Pursuant to that agreement,  the Fund pays the
Adviser a monthly  fee (the  "Investment  Advisory  Fee") at the annual  rate of
1.50% of the Fund's net assets.  Pursuant to this agreement the Fund was charged
$4,341,580 for the six months ended September 30, 2007.

The Fund compensates Mellon Trust of New England,  N.A. ("MTNE"), a wholly-owned
direct  subsidiary of BNY Mellon,  under a Custody  Agreement to provide custody
services for the Fund. In consideration for these services,  MTNE earns interest
on balances,  including disbursement balances and balances arising from purchase
and sale  transactions,  and the Fund  reimburses  certain  of MTNE's  expenses.
Pursuant to this agreement, the Fund was charged $8,693 for the six months ended
September 30, 2007.

The Fund has  contracted  with  Mellon  Investor  Services  LLC, a wholly  owned
subsidiary of BNY Mellon,  to provide printing and fulfillment  services for the
Fund. Pursuant to this agreement, the Fund was charged $8,501 for the six months
ended  September 30, 2007,  which is included in  miscellaneous  expenses on the
Statement of Operations.

The Fund  reimburses  BNY Mellon for a portion of the salary of the Fund's Chief
Compliance Officer.  Pursuant to this arrangement,  the Fund was charged $14,250
for the six months ended  September  30,  2007.  No other  director,  officer or
employee  of  Mellon  Hedge  Advisors,   LLC  or  its  affiliates  receives  any
compensation from the Fund for serving as an officer or Director of the Fund.

The Fund pays each  Director  who is not a director,  officer or employee of the
Adviser or its affiliates (an "Independent Director") an annual retainer and per
meeting  fees.  The Fund also  reimburses  the  Independent  Directors for their
reasonable out-of-pocket expenses. In addition, the Fund pays the legal fees for
the  independent  counsel of the  Independent  Directors.  The  Directors do not
receive any pension or retirement benefits from the Fund.

(4) INVESTMENT TRANSACTIONS:

During the six months ended September 30, 2007, the Fund had aggregate purchases
and proceeds from sales of Investment Funds of $22,000,000 and $0, respectively.

At September 30, 2007,  the Fund had made advance  investments  of $3,500,000 in
Intrepid Capital Fund (QP) and $3,500,000 in Maverick Fund USA, Ltd

(5) INDEMNIFICATION:

In the  ordinary  course of  business,  the Fund may  enter  into  contracts  or
agreements  that contain  indemnifications  or  warranties.  Future events could
occur that lead to the execution of these provisions  against the Fund. Based on
its history and  experience,  management  feels that the  likelihood  of such an
event is remote.





                                       11


                      MELLON OPTIMA L/S STRATEGY FUND, LLC

                    NOTES TO FINANCIAL STATEMENTS (UNAUDITED)


(6) FINANCIAL INSTRUMENTS WITH OFF-BALANCE SHEET RISK:

In the normal course of business, the Investment Funds in which the Fund invests
trade various financial instruments and enter into various investment activities
with  off-balance  sheet risk.  These  include,  but are not  limited to,  short
selling  activities,  writing option contracts,  contracts for differences,  and
equity swaps.  The Fund's risk of loss in these  Investment  Funds is limited to
the value of these investments as reported by the Fund.

(7) RISK FACTORS:

An  investment  in the Fund  involves a high degree of risk,  including the risk
that the entire  amount  invested may be lost.  The Fund  allocates  assets to a
select group of portfolio  managers and invests in Investment  Funds that invest
in and actively trade securities and other financial instruments using a variety
of strategies and investment  techniques with significant risk  characteristics,
including  the risks arising from the  volatility  of the equity,  fixed income,
commodity and currency  markets,  the risks of borrowings  and short sales,  the
risks arising from leverage associated with trading in the equities,  currencies
and   over-the-counter   derivatives  markets,  the  illiquidity  of  derivative
instruments and the risk of loss from  counter-party  defaults.  No guarantee or
representation is made that the investment program will be successful.

So as to satisfy certain prohibitions on affiliated  transactions imposed by the
1940 Act, the Fund may limit its investment  position in any one Investment Fund
to  less  than  5% of  the  Investment  Fund's  outstanding  voting  securities.
Alternatively,  to facilitate  investments in Investment Funds deemed attractive
by the Adviser,  the Fund may purchase  non-voting  securities  of, or waive its
right to vote some or all  securities  in, certain  Investment  Funds.  In cases
where the Fund purchases  non-voting  securities of, or waives its right to vote
securities in, an Investment  Fund, the Fund will not be able to vote on matters
that required the approval of security holders of the Investment Fund, including
matters that may be adverse to the Fund's and its Investors' interests.

(8) NEW ACCOUNTING REQUIREMENTS:

In September 2006, the FASB issued Statement on Financial  Accounting  Standards
("SFAS") No. 157, "Fair Value Measurements".  This standard establishes a single
authoritative  definition of fair value, sets out a framework for measuring fair
value and requires additional  disclosures about fair value  measurements.  SFAS
No. 157 applies to fair value  measurements  already  required or  permitted  by
existing  standards.  SFAS No. 157 is effective for financial  statements issued
for fiscal years  beginning  after November 15, 2007 and interim  periods within
those  fiscal  years.  The  changes to  current  generally  accepted  accounting
principles  from the  application of this Statement  relate to the definition of
fair value, the methods used to measure fair value, and the expanded disclosures
about fair value  measurements.  As of  September  30,  2007,  the Fund does not
believe the  adoption  of SFAS No. 157 will  impact the amounts  reported in the
financial statements,  however, additional disclosures may be required about the
inputs used to develop the measurements  and the effect of certain  measurements
reported in the financial statements for a fiscal period.








                                       12

                      MELLON OPTIMA L/S STRATEGY FUND, LLC

                    NOTES TO FINANCIAL STATEMENTS (UNAUDITED)


(9) INTEREST REPURCHASES:

On March 20, 2007, the Fund offered to repurchase up to $30,000,000 in interests
in the Fund from  Investors  at their  estimated  net asset value as of June 30,
2007.  The offer  expired by its terms on April 17, 2007.  The Fund received and
accepted  pursuant to this offer  tender  requests  for Fund  interests  with an
estimated value of $14,988,028. The Fund initially paid out 95% of the estimated
value of the  repurchased  interests.  The  remaining  will be paid out promptly
after completion of the Fund's 2008 fiscal year-end audit.

On  October  3,  2007,  the Fund  offered to  repurchase  up to  $30,000,000  in
interests in the Fund from  Investors at their  estimated  net asset value as of
December 31, 2007.  The offer expired by its terms on November 1, 2007. The Fund
received and accepted  pursuant to this offer tender requests for Fund interests
with an estimated value of  $17,238,355.  The Fund initially will pay out 95% of
the estimated value of the repurchased  interests.  The remaining amount will be
paid out promptly after completion of the Fund's 2008 fiscal year-end audit.

(10) SUBSEQUENT EVENT:

As of September  30, 2007,  the Fund had received in advance  proceeds  from the
sale of interests of $4,041,000,  which was credited to Investor's Capital as of
October 1, 2007.  From  October 1, 2007  through  November  19,  2007,  the Fund
received additional contributions from Investors of $4,151,000.


                                       13




DIRECTORS AND OFFICERS (UNAUDITED)

The  following  table  lists the Fund's  directors  and  officers;  their  ages,
addresses and dates of birth;  their  position(s)  with the Fund;  the length of
time holding  such  position(s)  with the Fund;  their  principal  occupation(s)
during the past five years;  the number of  portfolios  in the fund complex they
oversee;  other  directorships they hold in companies subject to registration or
reporting  requirements of the Securities Exchange Act of 1934 (generally called
"public   companies")  or  in  registered   investment   companies;   and  total
remuneration  paid  as of the  period  ended  September  30,  2007.  The  Fund's
Confidential  Offering  Memorandum  includes  additional  information  about the
Fund's  Directors and is available,  without charge to qualified  clients of BNY
Mellon  Wealth  Management,  upon request by writing  Mellon Optima L/S Strategy
Fund, LLC at One Boston Place, Suite 024-0071,  Boston, MA 02108 or calling toll
free 1-877-257-0004.

INDEPENDENT DIRECTORS



                                                                                       NUMBER OF        OTHER
                                                                                      PORTFOLIOS    DIRECTORSHIPS       DIRECTOR
                                               TERM OF                                  IN FUND        HELD BY        REMUNERATION
                              POSITION (S)   OFFICE AND                                 COMPLEX       DIRECTOR        (PERIOD ENDED
NAME (AGE), ADDRESS AND         HELD WITH     LENGTH OF    PRINCIPAL OCCUPATION(S)     OVERSEEN     OUTSIDE FUND      SEPTEMBER 30,
DATE OF BIRTH                     FUND       TIME SERVED     DURING PAST 5 YEARS      BY DIRECTOR      COMPLEX            2007)
- ----------------------------- -------------- ------------ --------------------------- ------------ ---------------- ----------------
                                                                                                       
Samuel C. Fleming (67)          Director       Term -     Chairman Emeritus,              25            None             $5,750
61 Meadowbrook Road                          Indefinite   Decision Resources, Inc.
Weston, MA  02493                             Length -    ("DRI") (biotechnology
9/30/40                                         Since     research and consulting
                                              Inception   firm); formerly Chairman
                                                          of the Board and Chief
                                                          Executive Officer, DRI

Benjamin M. Friedman (63)       Director       Term -     William Joseph Maier            25            None             $5,750
c/o Harvard University                       Indefinite   Professor of Political
Littauer Center 127                           Length -    Economy, Harvard
Cambridge, MA  02138                            Since     University
8/5/44                                        Inception

                                Director       Term -     Trustee, Mertens House,         25            None             $5,750
John H. Hewitt (72)                          Indefinite   Inc., (hospice)
P.O. Box 2333                                 Length -
New London, NH  03257                           Since
4/11/35                                       Inception

Caleb Loring III (64)           Director       Term -     Trustee, Essex Street           25            None             $6,750
c/o Essex Street Associates                  Indefinite   Associates, (family
P.O. Box 5600                                 Length -    investment trust office)
Beverly, MA 01915                               Since
11/14/43                                      Inception

INTERESTED DIRECTOR
None*


*Effective October 30, 2007, J. David Officer was elected as a Director of the
Trust.



                                       14


PRINCIPAL OFFICERS WHO ARE NOT DIRECTORS




NAME (AGE), ADDRESS AND                  POSITION(S)       TERM OF OFFICE AND            PRINCIPAL OCCUPATION(S)
DATE OF BIRTH                          HELD WITH FUND     LENGTH OF TIME SERVED            DURING PAST 5 YEARS
- -------------------------------------------------------------------------------------------------------------------------
                                                                        
Barbara A. McCann (46)*               President, Chief      Term - Indefinite    Senior Vice President and Head of
BNY Mellon Asset Management           Executive Officer      Length - Since      Operations, BNY Mellon Asset
One Boston Place                        and Secretary           Inception        Management ("MAM"); formerly First
Boston, MA  02108                                                                Vice President, MAM and Mellon Global
2/20/61                                                                          Investments.


Steven M. Anderson (42)                Vice President,      Term - Indefinite    Vice President and Mutual Funds
BNY Mellon Asset Management             Treasurer and        Length - Since      Controller, BNY Mellon Asset
One Boston Place                       Chief Financial          Inception        Management; formerly Assistant Vice
Boston, MA  02108                          Officer                               President and Mutual Funds Controller,
7/14/65                                                                          Standish Mellon Asset Management
                                                                                 Company, LLC

Jessica A. Drislane (35)               Vice President       Term - Indefinite    First Vice President, Director of
BNY Mellon Wealth Management                                 Length - Since      Hedge Fund Strategies, BNY Mellon
One Boston Place                                                June 2005        Wealth Management and Vice President,
Boston, MA  02108                                                                Mellon Hedge Advisors, LLC; formerly,
4/30/72                                                                          Founder and Chief Investment Officer,
                                                                                 Hub Capital Management and Principal,
                                                                                 Capital Resource Partners, LLC

Ridgway H. Powell (44)                 Vice President       Term - Indefinite    First Vice President of BNY Mellon
BNY Mellon Wealth Management                                 Length - Since      Wealth Management and Vice President
One Boston Place                                                June 2005        of Mellon Hedge Advisors, LLC;
Boston, MA  02108                                                                formerly Head of Taxable Fixed Income
11/5/63                                                                          Desk, BNY Mellon Wealth Management.


Denise B. Kneeland (56)**              Assistant Vice       Term - Indefinite    First Vice President and Manager,
BNY Mellon Asset Management               President          Length - Since      Mutual Funds Operations, BNY Mellon
One Boston Place                                                Inception        Asset Management; formerly Vice
Boston, MA  02108                                                                President and Manager, Mutual Fund
8/19/51                                                                          Operations, Standish Mellon Asset
                                                                                 Management Company, LLC

Mary T. Lomasney (50)                 Chief Compliance      Term - Indefinite    First Vice President, BNY Mellon Asset
BNY Mellon Asset Management                Officer           Length - Since      Management and Chief Compliance
One Boston Place                                                Inception        Officer, Mellon Institutional Funds;
Boston, MA  02108                                                                formerly Director, Blackrock, Inc.,
4/8/57                                                                           Senior Vice President, State Street
                                                                                 Research & Management Company ("SSRM")
                                                                                 and Vice President, SSRM


* Effective October 30, 2007, Ms. McCann resigned as President, Chief Executive
Officer and Secretary of the Fund, and J. David Officer was elected as President
and Chief Executive Officer of the Fund.

** Effective October 30, 2007, Ms. Kneeland was elected as Secretary of the
Fund.




                                       15




ITEM 2.  CODE OF ETHICS.

         Not applicable to this semi-annual filing.

ITEM 3.  AUDIT COMMITTEE FINANCIAL EXPERT.

         Not applicable to this semi-annual filing.

ITEM 4.  PRINCIPAL ACCOUNTANT FEES AND SERVICES.

         Not applicable to this semi-annual filing.

ITEM 5.  AUDIT COMMITTEE OF LISTED REGISTRANTS.

         Not applicable to the Registrant.

ITEM 6.  SCHEDULE OF INVESTMENTS

         Included  as  part of the  Semi-Annual  Report to Investors filed under
         Item 1 of this Form N-CSR.

ITEM 7.  DISCLOSURE OF PROXY VOTING POLICIES AND PROCEDURES FOR CLOSED-END
         MANAGEMENT INVESTMENT COMPANIES.

         Not applicable to the Registrant.

ITEM 8.  PORTFOLIO MANAGERS OF CLOSED-END MANAGEMENT INVESTMENT COMPANIES.

         Not applicable to this semi-annual filing.

ITEM 9.  PURCHASES OF EQUITY SECURITIES BY CLOSED-END MANAGEMENT INVESTMENT
         COMPANY AND AFFILIATED PURCHASERS.

         Not applicable to the Registrant.

ITEM 10. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS.

         There have been no material changes.

ITEM 11. CONTROLS AND PROCEDURES.

         (a)      The  Registrant's  Principal  Executive  Officer and Principal
                  Financial Officer  concluded that the Registrant's  disclosure
                  controls  and   procedures   are  effective   based  on  their
                  evaluation  of  the  Registrant's   disclosure   controls  and
                  procedures  as of a date  within 90 days  prior to the  filing
                  date of this report (the "Evaluation  Date" as defined in Rule
                  30a-3(c) under the Investment Company Act of 1940).

         (b)      There  were no changes in the  Registrant's  internal  control
                  over  financial  reporting (as defined in Rule 30a-3(d)  under
                  the  Investment  Company Act of 1940 that occurred  during the
                  Registrant's  second  fiscal  half-year  that  has  materially
                  affected,  or is reasonably likely to materially  affect,  the
                  Registrant's internal control over financial reporting.

ITEM 12. EXHIBITS.

         (a)(1)   Not applicable to this semi-annual filing.


         (a)(2)   Certifications   of  the  Principal   Executive   Officer  and
                  Principal  Financial  Officer of the Registrant as required by
                  Rule  30a-2(a)  under the  Investment  Company Act of 1940 are
                  attached hereto as Exhibit 99CERT.302

         (b)      Certifications   as  required  by  Rule  30a-2(b)   under  the
                  Investment  Company Act of 1940 and pursuant to Section 906 of
                  the  Sarbanes-Oxley Act of 2002 are attached hereto as Exhibit
                  99CERT.906.







                                   SIGNATURES


Pursuant to the  requirements  of the  Securities  Exchange  Act of 1934 and the
Investment Company Act of 1940, the Registrant has duly caused this report to be
signed on its behalf by the undersigned, thereunto duly authorized.



(Registrant)               Mellon Optima L/S Strategy Fund, LLC

                           
By (Signature and Title):  /s/ DENISE B. KNEELAND
                           ----------------------------------------------------
                           Denise B. Kneeland, Assistant Vice President and Secretary

                           Date:  December 7, 2007



Pursuant to the  requirements  of the  Securities  Exchange  Act of 1934 and the
Investment  Company  Act of  1940,  this  report  has been  signed  below by the
following persons on behalf of the Registrant and in the capacities,  and on the
dates indicated.


By (Signature and Title):  /s/ J. DAVID OFFICER
                           -------------------------------------------------------
                           J. David Officer, President and Chief Executive Officer

                           Date:  December 7, 2007



By (Signature and Title):  /s/ STEVEN M. ANDERSON
                           --------------------------------------------------------------------------
                           Steven M. Anderson, Vice President, Treasurer, and Chief Financial Officer

                           Date:  December 7, 2007