Bossert, Silas, and Sébastien Patiny. “Description of the Previously Unknown Male of Systropha (Austrosystropha) Macronasuta (Hymenoptera: Halictidae: Rophitinae) from Kenya”. Journal of Melittology, no. 67, Apr. 2017, pp. 1-9, https://doi.org/10.17161/jom.v0i67.5929.