Griswold, Terry, and Molly G. Rightmyer. 2017. “A Revision of the Subgenus Osmia (Diceratosmia), With Descriptions of Four New Species (Hymenoptera, Megachilidae)”. Zootaxa 4337 (1). Auckland, New Zealand:1–37. https://doi.org/10.11646/zootaxa.4337.1.1.