They are usually brownish in color and have eyes. Flatworms crawl over damp areas in search for their food. They leave a sticky trail which causes isopods and amphipods to become stuck. Then the flatworm is in for a feast. Cave crickets are pale brown and have smaller eyes than those crickets that are surface dwellers.
Cave crickets love the warm, moist cave.
However, they may leave at night in search of food. The food they carry inside, their dropping, and eggs feed other cave animals. Crickets are insects with six legs and an exoskeleton. Leiobunum is really not a spider. It does not have venom or silk glands.