How to delete file on particular date

Issue

For below example, to delete the file which is created on 31 Aug 2009, how to archive it?

# ls -l |grep "Aug"
-rw-r--r--   1 uxaadm     users           70 Aug 31  2009 ifx-tas-usage-310809
-rw-r--r--   1 uxaadm     users           69 Aug 31  2010 ifx-tas-usage-310810
-rw-r--r--   1 uxaadm     users           70 Aug 31  2011 ifx-tas-usage-310811