Aguna Williams, 1927 (original description)
Ashtonipsithyrus Frison, 1927 (original description)
Balboa Hebard, 1927 accepted as Balboana Uvarov, 1939 (original description)
Boopobombus Frison, 1927 (original description)
Carteretta Fox, 1927 (original description)
Drepanopterna Rehn, 1927 (original description)
Erioloides Hebard, 1927 (original description)
Fernaldaepsithyrus Frison, 1927 (original description)
Gatunia Hebard, 1927 accepted as Gatunella Uvarov, 1940 (original description)
Goethalsiella Hebard, 1927 (original description)
Harroweria Hebard, 1927 (original description)
Hubbellia Hebard, 1927 (original description)
Laboriopsithyrus Frison, 1927 (original description)
Rufocinctobombus Frison, 1927 (original description)
Scyllinops Rehn, 1927 (original description)
Separatobombus Frison, 1927 (original description)
Tetanophrys Hebard, 1927 (original description)