Ant spiders: Family Zodariidae
https://upload.wikimedia.org/wikiped...-.tanikawa.jpg
https://upload.wikimedia.org/wikiped...-.tanikawa.jpg
It is likely that the spiders also derive some protection against predation from their similarity to the ants, since ants are unpalatable to many species that eat spiders.
Identification :
Tarsi bear 3 claws, All legs are short and nearly equal in length and do not bear scopulae.
[Scopulae, or scopula pads, are dense tufts of hair at the end of a spiders's legs.]