Gibbs, Jason, Sheila Dumesh, and Terry L. Griswold. 2014. “Bees of the Genera Dufourea and Dieunomia of Michigan (Hymenoptera: Apoidea: Halictidae), With a Key to the Dufourea of the Eastern United States”. Journal of Melittology, no. 29 (March): 1-15. https://doi.org/10.17161/jom.v0i29.4652.