Template:Gadallah, 2020a

• Gadallah, N.S. 2020. Biodiversity of the aculeate wasps (Hymenoptera: Aculeata) of the Arabian Peninsula: Apoidea (Spheciformes), Crabronidae. Pp 20–73 In Gadallah, N.S., Brothers, D.J. & Williams, K.A., eds. Biodiversity of the aculeate wasps (Hymenoptera: Aculeata) of the Arabian Peninsula. Zootaxa 1-216. Reference page. . Zootaxa 4754(1): 20–73. DOI: 10.11646/zootaxa.4754.1.6  
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• Date of publication: 20 March 2020
• ZooBank: F180E4FF-2E26-406D-B988-AA7505CAA90A
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