There are 16 known species in the genus Anthanassa, most of which are confined to the neotropical region, although 3 are found in the USA.
This is a female of the subspecies Anthanassa drusilla drusilla.

Andrew Neild, author of The Butterflies of Venezuela helped me identify this butterfly.

Minca area, Sierra Nevada de Santa Marta, Colombia, 24 October 2014