Coelioxys

Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Atelocerata
Class: Hexapoda (including Insecta)
Infraclass: Neoptera
Subclass: Pterygota
Order: Hymenoptera
Suborder: Apocrita
Superfamily: Apoidea
Family: Megachilidae
Subfamily: Megachilinae
Tribe: Megachelini
Genus: Coelioxys