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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 (Mar. 2018), 329–340. DOI:https://doi.org/10.11646/zootaxa.4399.3.3.