Megachilidae Megachile Lithurgus
Células submarginales 2
Escopa ventral en hembras presente
Arolium presente ausente
Costilla frontal generalmente presente
Mandíbula gruesas con dientes pequeños múltiples o ancho margen tridentada

Referencias

A Beginner’s Field Guide to Identifying Bees
https://www.pollinator.org

López-Uribe Lab. Megachilidae
https://lopezuribelab.com

Subgeneric classification and biology of the leafcutter and dauber bees (genus Megachile Latreille) of the western Palearctic (Hymenoptera, Apoidea, Megachilidae)
https://jhr.pensoft.net