[1]
Saini, V. and Dey, D. 2022.

Description of Rhopalum (s. str.) gulmargense n. sp. with a key to the Indian species of the subgenus Rhopalum Stephens, 1829 s. str. (Hymenoptera: Crabronidae: Crabronini)

. Zootaxa. 5105, 1 (Mar. 2022), 139–144. DOI:https://doi.org/10.11646/zootaxa.5105.1.6.