Additions To The Bee Brazilian Fauna: First Record Of Anthrenoides, Callonychium And Psaenythia (Hymenoptera, Apoidea) In The State Of Piaui

The bee genera Callonychium Brethes, Psaenythia Gerstaecker and Anthrenoides Ducke are newly recorded in Piaui State, northeastern Brazil. The species reported here are Callonychium brasilience (Ducke, 1907) and Psaenythia variabilis Ducke, 1908, and an as yet unidentified species of Anthrenoides. Images and all known distributional records of these species are also provided. The new occurrences reported herein expand the distribution range of the species to the Caatinga biome.