Gadallah, N.S. 2020.

Biodiversity of the aculeate wasps (Hymenoptera: Aculeata) of the Arabian Peninsula: Apoidea (Spheciformes), Ampulicidae

. Zootaxa. 4754, 1 (Mar. 2020), 17–19. DOI:https://doi.org/10.11646/zootaxa.4754.1.5.