Photo by Kevin Zansler, Cockscomb Basin Wildlife Sanctuary, Belize, May 2012.

Giant crab spiders belong to Family Sparassidae.  We are informed by Stuart Longhorn that the spider in this photo is veryt likely Olios simonsi, previously only known for the aged female holotype that was collected in Guatemala.  We encounter these on occasion, and will endeavor to do as Stuart suggested and collect a female and male specimen to enable a verification and redescription.