Imagine a movie in which our governor visits an alien planet and hunts down a group of alien military types, one by one, in the wilderness, until only one is left. Arnold has heat vision, of course, but one alien figures this out and covers itself with sand to disguise its own heat signature, thereby becoming invisible to this human hunter. Let's call the film Bizarro Predator. I think this is what our protagonist would look like. Except spiders are poikilotherms and don't have heat and are probably invisible to heat-sensing interstellar predators. D'oh.
Super cool little spider that uses tiny hairs to attach sand to itself for camouflage. Also, not being able to add inverts is really beginning to bug me (ahyur). I need to fix that...
The Homalonychidae are a very small spider family with three described species in one genus.