Opinions from T. D. A. Cockerell 1908
- 'Andrena hypolitha belongs to Andrena'
- 'Andrena pyrrhacita belongs to Andrena' according to Cockerell 1907
- 'Anthophora effossa is a nomen dubium'
- 'Anthophora melfordi belongs to Anthophora'
- 'Apes is corrected as Apinae and belongs to Apidae'
- 'Apiariae is corrected as Apidae and belongs to Apoidea'
- 'Apis belongs to Apinae'
- 'Apis (Synapis) belongs to Apis'
- 'Apis (Synapis) henshawi belongs to Apis (Synapis)'
- 'Apis meliponoides is recombined as Electrapis meliponoides'
- 'Bombi was reranked as the family Bombidae and belongs to Apoidea'
- 'Bombus belongs to Bombidae'
- 'Calyptapis belongs to Bombidae'
- 'Calyptapis florissantensis belongs to Calyptapis'
- 'Chalcobombus belongs to Bombidae'
- 'Chalcobombus hirsutus belongs to Chalcobombus'
- 'Chalcobombus humilis belongs to Chalcobombus'
- 'Chalcobombus martialis belongs to Chalcobombus'
- 'Diandrena nothocalaidis belongs to Diandrena' according to Cockerell 1905
- 'Dioxys belongs to Apoidea'
- 'Dioxys rohweri belongs to Dioxys'
- 'Electrapis belongs to Bombidae'
- 'Electrapis tornquisti belongs to Electrapis'
- 'Melecta duplicate belongs to Melecta' according to Cresson 1878
- 'Melecta duplicate is recombined as Bombomelecta pacifica'
- 'Melipona belongs to Meliponinae'
- 'Meliponidae is corrected as Meliponinae and belongs to Apidae'
- 'Meliponorytes belongs to Meliponinae'
- 'Meliponorytes succini belongs to Meliponorytes'
- 'Melissodes martini belongs to Melissodes' according to Cockerell 1905
- 'Nomia foxii belongs to Nomia' according to Dalla Torre 1896
- 'Nomia foxii belongs to Nomia'
- 'Nomia melanderi belongs to Nomia' according to Cockerell 1906
- 'Nomia melanderi belongs to Nomia'
- 'Nomia mesillensis belongs to Nomia'
- 'Nomia universitatis belongs to Nomia'
- 'Osmia bruneri belongs to Osmia' according to Cockerell 1897
- 'Osmia gaudiosa belongs to Osmia' according to Cockerell 1907
- 'Protobombus belongs to Bombidae'
- 'Protobombus indecisus belongs to Protobombus'
- 'Psithyrus belongs to Bombidae'
- 'Sophrobombus belongs to Bombidae'
- 'Sophrobombus fatalis belongs to Sophrobombus'
- 'Sphecodes sulcatulus belongs to Sphecodes' according to Cockerell 1906
- 'Stelis belongs to Apoidea'
- 'Stelis seneciophila belongs to Stelis'
- 'Tetralonia chrysobotryae belongs to Tetralonia'
- 'Titusella pronitens belongs to Titusella' according to Cockerell 1906
- 'Trigona belongs to Meliponinae'