Template:Müller, 2017

• Müller, A. 2017. Palaearctic Protosmia bees of the subgenus Chelostomopsis (Megachilidae, Osmiini): biology, taxonomy and key to species. Zootaxa 4227(2): 287–294. DOI: 10.11646/zootaxa.4227.2.9.  
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Nomenclatural acts

• Date of publication: 2 February 2017
• ZooBank

New names (1)

• Protosmia (Chelostomopsis) angustimandibulae