Mitchell 1930 : 254 New combinations and synonymies of leafcutter and mason bees of the Americas (Megachile, Hymenoptera, Megachilidae) Raw, Anthony Zootaxa 2002 71 1 43 3YRND Mitchell Mitchell [264,448,283,310] Insecta Megachilidae Megachile Animalia Hymenoptera 4 5 Arthropoda species futilis comb. nov.     Megachile futilis  Mitchell 1930: 254­255. Male. Typelocality: Tapyta, Bolivia. Based on the description the species is tentatively placed in this subgenus.