1-3 of 3 Books
A subgeneric revision of the bees of the genus Coelioxys of the Western Hemisphere (Hymenoptara: Megachilidae)
A subgeneric revision of the bees of the genus Coelioxys of the Western Hemisphere (Hymenoptara: Megachilidae)
By Theodore B. Mitchell
Taxonomy of five Nearctic subgenera of Coelioxys (Hymenoptera, Megachilidae)
Taxonomy of five Nearctic subgenera of Coelioxys (Hymenoptera, Megachilidae)
By Baker, James R.
Some bees, principally from Formosa and China
Some bees, principally from Formosa and China
By Theodore Dru Alison Cockerell,Harry R. Caldwell