Bąkowski, M. and Piątek, W. 2020. Morphology of pupae of the Pyropteron (Synansphecia) triannuliforme-group (Lepidoptera: Sesiidae) . Zootaxa. 4786, 1 (May 2020), 93–100. DOI:https://doi.org/10.11646/zootaxa.4786.1.7.