Males of this genus can be distinguished by the tibial spurs on leg 1 and 2, while females differ from most other genera by the anterior eye row, which is strongly curved forward. Avicularia and Typhochlaena both own the latter characteristics; however, Iridopelma can be distinguished from Avicularia by the spermatheca, which lacks a curvature, and from Typhochlaena by the spinnerets, which are finger-shaped.[3]
Species
As of March 2020[update] it contains six species, all found in Brazil:[1]