January 6, 2016
Securities and Exchange Commission
Office of Filings and Information Services
100 F Street, NE
Washington, DC 20549
Re: Dreyfus Midcap Index Fund, Inc.
1933 Act File No.: 33-41078
1940 Act File No.: 811-06325
CIK No.: 0000875732
Ladies and Gentlemen:
Transmitted for filing is the Annual Report to Shareholders for the above-referenced Fund for the Annual period ended October 31, 2015, filed in compliance with the provisions of Section 30 of the Investment Company Act of 1940.
Very truly yours,
/s/ Gina M. Gomes
Gina M. Gomes
Paralegal
GMG\
Enclosures