Kasparek, M. (2018).

A new species of Trachusa Panzer, 1804 (Megachilidae: Anthidiini) from southern Africa, with notes on the subgeneric classification and a key to the Afrotropical species

. Zootaxa, 4399(3), 329–340. https://doi.org/10.11646/zootaxa.4399.3.3