Griswold, T. and Rightmyer, M.G. 2017. A revision of the subgenus Osmia (Diceratosmia), with descriptions of four new species (Hymenoptera, Megachilidae). Zootaxa. 4337, 1 (Oct. 2017), 1–37. DOI:https://doi.org/10.11646/zootaxa.4337.1.1.