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


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


                                    FORM 8-K

                                 CURRENT REPORT


                     Pursuant to Section 13 or 15(d) of the
                         Securities Exchange Act of 1934


                         Date of Report: March 24, 2005
                        ---------------------------------
                        (Date of earliest event reported)


                       CITICORP MORTGAGE SECURITIES, INC.
                             (Packager and Servicer)
   (Issuer in Respect of the REMIC Pass-Through Certificates, Series 2005-2)
   --------------------------------------------------------------------------
               (Exact name of registrant as specified in charter)


   Delaware                     333-109722                     13-3408717
 ----------------------------------------------------------------------------
  (State or other juris-       (Commission                 (I.R.S. Employer
 diction of organization)       File Nos.)                Identification No.)


   1000 Technology Drive, O'Fallon, Missouri                   63304
--------------------------------------------------          ----------
   (Address of principal executive offices)                 (Zip Code)


Registrant's Telephone Number, including area code: (636) 261-1313

--------------------------------------------------------------------------
(Former name, former address and former fiscal year, if changed since last
report.)


<PAGE>


Item 8.01.  Other Events

The consolidated financial statements of Ambac Assurance Corporation and
subsidiaries as of December 31, 2004 and 2003, and for each of the years in the
three-year period ended December 31, 2004, included in the Annual Report on Form
10-K of Ambac Financial Group, Inc. (which was filed with the Securities and
Exchange Commission (the "Commission") on March 15, 2005, Commission File Number
1-10777), are incorporated by reference in this Current Report on Form 8-K,
registration statement (No. 333-109722) of the registrant, and in the Prospectus
Supplement of the registrant relating to Citicorp Mortgage Securities, Inc.,
REMIC Pass-Through Certificates, Series 2005-2.


<PAGE>


Item 9.01.  Financial Statements and Exhibits

         (c) Exhibits



Item 601 (a)
of Regulation S-K
Exhibit No.                        Description
------------------                 -----------

 EX-23              Consent of KPMG LLP, independent registered public
                    accounting firm of Ambac Assurance Corporation and
                    subsidiaries in connection with Citicorp Mortgage
                    Securities, Inc., REMIC Pass-Through Certificates,
                    Series 2005-2.


<PAGE>

                                   SIGNATURES

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


                                            CITICORP MORTGAGE SECURITIES, INC.
                                            (Registrant)

                                            By: /s/ Howard Darmstadter
                                               -------------------------
                                                    Howard Darmstadter
                                                    Assistant Secretary


Dated: March 24, 2005


<PAGE>

                               INDEX TO EXHIBITS


Exhibit No.                        Description
------------------                 -----------

 EX-23              Consent of KPMG LLP, independent registered public
                    accounting firm of Ambac Assurance Corporation and
                    subsidiaries in connection with Citicorp Mortgage
                    Securities, Inc., REMIC Pass-Through Certificates,
                    Series 2005-2.
[{"type": "8-K", "sequence": "1", "filename": "kpmgconsent8k2005-2.txt", "description": "CMSI 2005-2 KPMG CONSENT", "secsgml_size_bytes": 4056}]
{"company-data": {"conformed-name": "CITICORP MORTGAGE SECURITIES INC", "cik": "0000811785", "assigned-sic": "6189", "irs-number": "133408717", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "000-16107", "film-number": "05702630"}, "business-address": {"street1": "1000 TECHNOLOGY DRIVE", "city": "O", "state": "MO", "zip": "63304", "phone": "6362611313"}, "mail-address": {"street1": "CITIGROUP INC CORPORATE LAW DEPT", "street2": "425 PARK AVENUE 2ND FLOOR", "city": "NEW YORK", "state": "NY", "zip": "10043"}}
UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

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

                                    FORM 8-K

                                 CURRENT REPORT

                     Pursuant to Section 13 or 15(d) of the
                         Securities Exchange Act of 1934

                         Date of Report: March 24, 2005
                        ---------------------------------
                        (Date of earliest event reported)

                       CITICORP MORTGAGE SECURITIES, INC.
                             (Packager and Servicer)
   (Issuer in Respect of the REMIC Pass-Through Certificates, Series 2005-2)
   --------------------------------------------------------------------------
               (Exact name of registrant as specified in charter)

   Delaware                     333-109722                     13-3408717
 ----------------------------------------------------------------------------
  (State or other juris-       (Commission                 (I.R.S. Employer
 diction of organization)       File Nos.)                Identification No.)

   1000 Technology Drive, O'Fallon, Missouri                   63304
--------------------------------------------------          ----------
   (Address of principal executive offices)                 (Zip Code)

Registrant's Telephone Number, including area code: (636) 261-1313

--------------------------------------------------------------------------
(Former name, former address and former fiscal year, if changed since last
report.)
Item 8.01.  Other Events

The consolidated financial statements of Ambac Assurance Corporation and
subsidiaries as of December 31, 2004 and 2003, and for each of the years in the
three-year period ended December 31, 2004, included in the Annual Report on Form
10-K of Ambac Financial Group, Inc. (which was filed with the Securities and
Exchange Commission (the "Commission") on March 15, 2005, Commission File Number
1-10777), are incorporated by reference in this Current Report on Form 8-K,
registration statement (No. 333-109722) of the registrant, and in the Prospectus
Supplement of the registrant relating to Citicorp Mortgage Securities, Inc.,
REMIC Pass-Through Certificates, Series 2005-2.
Item 9.01.  Financial Statements and Exhibits

         (c) Exhibits

Item 601 (a)
of Regulation S-K
Exhibit No.                        Description
------------------                 -----------

 EX-23              Consent of KPMG LLP, independent registered public
                    accounting firm of Ambac Assurance Corporation and
                    subsidiaries in connection with Citicorp Mortgage
                    Securities, Inc., REMIC Pass-Through Certificates,
                    Series 2005-2.
SIGNATURES

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

                                            CITICORP MORTGAGE SECURITIES, INC.
                                            (Registrant)

                                            By: /s/ Howard Darmstadter
                                               -------------------------
                                                    Howard Darmstadter
                                                    Assistant Secretary

Dated: March 24, 2005
INDEX TO EXHIBITS

Exhibit No.                        Description
------------------                 -----------

 EX-23              Consent of KPMG LLP, independent registered public
                    accounting firm of Ambac Assurance Corporation and
                    subsidiaries in connection with Citicorp Mortgage
                    Securities, Inc., REMIC Pass-Through Certificates,
                    Series 2005-2.