Scientific Name: Colletes brevicornis Robertson, 1897
Common Name: Short-horned Plasterer Bee
Colletes brevicornis Robertson, 1897: 315 [♂‚]
Holotype ♂‚. USA, Illinois, Carlinville [INHS].
Colletes opuntiae Cockerell, 1906d: 312 [♂‚,♀] [synonymy by Cockerell (1907b), Swenk (1908)]
Holotype ♂‚. USA, Colorado, Boulder, 3 July 1905, by W.P. Cockerell, on Opuntia [USNM].
Notes on Type Material: Though Stephen (1954) designated a lectoallotype ♀ for C. brevicornis, Robertson (1897) clearly indicated that there was only one specimen examined, so there were no paratypes or syntypes available.
Species Notes: Colletes brachyceros Swenk (1906a) was proposed as a replacement name for the European species, Colletes brevicornis Pérez (1903).
Pollen Specialization: Broad Oligolecty
Wintering Stage: Adult
Distribution: Manitoba, Saskatchewan