First, let me apologize for possibly misspelling the name - I didn't 
bother to double check - and still haven't. "La Catrina" is the calaca 
figure created by the artist Jose Guadalupe Posada; a female often 
depicted with a wide-brimmed hat trimmed with feathers, and wearing a 
blouse and skirt. You might try to google Jose Guadalupe Posada. (Note: 
please excuse missing accents - haven't memorized the rules.)
The following is the site for the Mexican Cultural Institute:
http://www.embassyofmexico.org/mci/news.htm
Hasta la proxima,

Natalie Coleman, VA