Tliltocatl andrewi

Only a male preserved since 1875 has been described, initially incorrectly as Euathlus truculentus. Its body length is 55 mm; the fourth leg is longest at 67 mm. The general colour is blackish brown, with long orange-red hairs on the abdomen and legs. The femurs of the legs have bronze gold hairs.[2] The palpal bulb has a wide embolus tapering to a point,[2] typical of Brachypelma species (as then understood) as opposed to the long tapered embolus of Euathlus species.[3]

In a study published in 1992, Andrew Smith described a specimen in the British Museum of Natural History believing it to be a male of Euathlus truculentus. He used his description to support the view held at the time that the genus Brachypelma was synonymous with Euathlus.[2] However, shortly afterwards in 1992, Günter Schmidt realized that this specimen was not the same species as the type of Euathlus truculentus, but was in fact a new species of Brachypelma (as then understood), which he called B. andrewi after Andrew Smith. Smith accepted that he had been mistaken.[3] As of September 2017, only this male has been described. The species was transferred to Tliltocatl, along with other species of Brachypelma, in 2020.[1]

The label on the described specimen says "Cuba", but this is considered unlikely as its place of origin, the presumption being that it was purchased in Havana, Cuba.[2]