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Popular traits
640 mason, leafcutter, carder, and resin bees species
Megachile angularis
Hoplitis gleasoni
Hoplitis samarkanda
Stelis alta
Osmia inspergens
Osmia caulicola
Osmia chalybea
Osmia cordata
Osmia giliarum
Osmia grindeliae
Osmia nanula
Osmia paradisica
Osmia sandhouseae
Osmia subfasciata
Osmia thysanisca
Stelis paiute
Chelostoma californicum
Dioxys pacificus
Ashmeadiella leachi
Ashmeadiella salviae
Ashmeadiella cubiceps
Ashmeadiella femorata
Ashmeadiella leucozona
Ashmeadiella maxima
Ashmeadiella occipitalis
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