EXHIBIT 23.1

 

CONSENT OF MCGLADREY & PULLEN, LLP

 

 

Consent of Independent Registered Public Accounting Firm

 

The Board of Directors

International Bancshares Corporation

 

We consent to the incorporation by reference in this Registration Statement on Form S-8 of International Bancshares Corporation of our reports dated February 28, 2008 relating to our audits of the consolidated financial statements and internal control over financial reporting, included in and incorporated by reference in the Annual Report on Form 10-K of International Bancshares Corporation for the year ended December 31, 2007.

 

/s/ McGladrey & Pullen, LLP

 

Dallas, Texas

June 30, 2008