Megachilidae Schenk, 1860
Ashmeadiella altadenae Michener, 1936
Ashmeadiella aridula Cockerell, 1910
Ashmeadiella australis (Cockerell, 1902)
Ashmeadiella barberi Michener, 1939
Ashmeadiella bequaerti Cockerell, 1931
Ashmeadiella bigeloviae (Cockerell, 1897)
Ashmeadiella biscopula Michener, 1939
Ashmeadiella breviceps Michener, 1939
Ashmeadiella bucconis (Say, 1837)
Ashmeadiella cactorum (Cockerell, 1897)
Ashmeadiella californica (Ashmead, 1897)
Ashmeadiella cazieri Michener, 1939
Ashmeadiella chumashae Griswold, 1985
Ashmeadiella clypeodentata Michener, 1936
Ashmeadiella cockerelli Michener, 1936
Ashmeadiella crassa Cockerell, 1924
Ashmeadiella cubiceps (Cresson, 1879)
Ashmeadiella difugita Michener, 1939
Ashmeadiella digiticauda Cockerell, 1924
Ashmeadiella dimalla Michener, 1939
Ashmeadiella erema Michener, 1939
Ashmeadiella eurynorhyncha Michener, 1939
Ashmeadiella femorata (Michener, 1936)
Ashmeadiella floridana (Robertson, 1897)
Ashmeadiella foveata Michener, 1939
Ashmeadiella foxiella Michener, 1939
Ashmeadiella gillettei Titus, 1904
Ashmeadiella holtii Cockerell, 1898
Ashmeadiella hurdiana (Michener, 1954)
Ashmeadiella inyoensis Michener, 1939
Ashmeadiella lateralis Michener, 1936
Ashmeadiella leachi Michener, 1949
Ashmeadiella leucozona Cockerell, 1924
Ashmeadiella lutzi (Cockerell, 1930)
Ashmeadiella maxima Michener, 1936
Ashmeadiella meliloti (Cockerell, 1897)
Ashmeadiella micheneri Snelling, 1962
Ashmeadiella microsoma Cockerell, 1924
Ashmeadiella neomexicana (Cockerell, 1904)
Ashmeadiella occipitalis Michener, 1939
Ashmeadiella opuntiae (Cockerell, 1897)
Ashmeadiella parkinsoniae Parker, 1977
Ashmeadiella pronitens (Cockerell, 1906)
Ashmeadiella prosopidis (Cockerell, 1897)
Ashmeadiella rhodognatha Cockerell, 1924
Ashmeadiella rubrella (Michener, 1949)
Ashmeadiella rufipes Titus, 1904
Ashmeadiella rufitarsis Michener, 1939
Ashmeadiella salviae Michener, 1939
Ashmeadiella sangrita (Peters, 1972)
Ashmeadiella sculleni Michener, 1939
Ashmeadiella sonora Michener, 1939
Ashmeadiella stenognatha Michener, 1939
Ashmeadiella stevensi Michener, 1937
Ashmeadiella timberlakei Michener, 1936
Ashmeadiella titusi Michener, 1939
Ashmeadiella truncativentris Michener, 1951
Ashmeadiella vandykiella Michener, 1949
Ashmeadiella xenomastax Michener, 1939