Source: The Tome of Horrors, pg(s). 192
Solifugids are arachnids that dwell in the desert around Katapesh. They tend to be the size of a man and appear as a hybrid of spider and beetle. A solifugid has eight legs, two spiderlike eyes, and a set of large, clicking, hooked mandibles. Two large scorpion-like pincers protrude from just in front of its foremost legs. They are the subject of various rumors about their poison's deadly properties, all of which are false as solifugids have no poison.