Tliltocatl

Tliltocatl is a genus of North American tarantulas that was split off from Brachypelma in 2020. They are also large burrowing tarantulas, but don't have the striking red leg markings of Brachypelma species. A female T. vagans can grow up to long and legs can get as long as . They are found predominantly in Mexico, with some species native to Central America. The name is derived from two Nahuatl words, "tlil", meaning "black", and "tocatl", meaning "spider". Habitat destruction and collection for the pet trade has led to this and Brachypelma to be protected under International Convention on International Trade of Endangered Species rules, beginning with B. smithi.

==Description== The carapace is about as long as wide, though the sternum is longer than wide. The first legs are the longest, but all four legs have undivided scopuli on its tarsus. Stridulating hairs are present on both the retrolateral and prolateral faces of the second segment of the pedipalp, as well as on the third segment of the first leg. Sexually mature males have two tibial apophyses, the retrolateral one being slightly curved at the end. They share many features with Brachypelma species, including stridulating hairs in the same locations. Both have type I urticating hairs surrounding type III on the rear of their abdomens. Male palpal bulbs are similar, both spoon-shaped at the end. Females have a single fused spermatheca with an either absent or weakly developed baseplate. Tliltocatl species can be distinguished from those of Brachypelma by their coloration, especially evident in the absence red rings on the legs. Red markings are also absent from the carapace. They have long red or yellowish hairs on their abdomens, spines on the patellae of both the palps, and different genitalia shapes.