Sand-adapted
Guides
Homalonychus theologus
American sand assassin
Homalonychus theologus is a true spider in the obscure family Homalonychidae, found in the southwestern United States and northwestern Mexico. It is one of only two species in its genus. The species exhibits distinctive sand-encrusted camouflage achieved through specialized setae that trap soil particles. It does not construct webs and has been observed employing self-burying behavior during molting and mating.