Megachilinae is a subfamily of bees, the largest subfamily in the family Megachilidae, the mason bees. * Subfamily Megachilinae * Tribe Lithurgini * Lithurgus * Microthurge * Trichothurgus * Tribe Osmiini * Afroheriades * Ashmeadiella * Atoposmia * Bekilia * Chelostoma * Haetosmia * Heriades have narrow abdominal bands. They resemble small Osmia, but they are oligolectic (specialized on a few subfamilies of Asteraceae) and use resin from conifers, as well as plant fibers and sand, as cell wall material. * Hofferia * Hoplitis * Hoplosmia * Noteriades * Ochreriades * Osmia * Othinosmia * Protosmia * Pseudoheriades * Stenoheriades * Stenosmia * Wainia * Xeroheriades * Tribe Anthidiini * Acedanthidium * Afranthidium * Afrostelis * Anthidiellum * Anthidioma * An