Nomada penangensis Cockerell, 1920c

Ascher, John S., Soh, Zestin W. W., Chui, Shao Xiong, Soh, Eunice J. Y., Ho, Benjamin M., Lee, John X. Q., Gajanur, Anya R. & Ong, Xin Rui, 2022, The bees of Singapore (Hymenoptera: Apoidea: Anthophila): First comprehensive country checklist and conservation assessment for a Southeast Asian bee fauna, Raffles Bulletin of Zoology 70, pp. 39-64 : 47

10. Nomada penangensis Cockerell, 1920c , Penang Nomad This species was described from Penang and recorded from Singapore from the Alumni Car Park Garden of the old National University of Singapore Campus (near the Singapore Botanic Gardens) in 1975. This and other species of the furva group of Nomada , an “almost certainly monophyletic” group within the genus comprising “the only group present in Southeast Asia, the Malay Archipelago, New Guinea, and Australia ” ( Alexander, 1994) are presumed to be cleptoparasites of Lasioglossum . Small-bodied cleptoparasites can be easy to overlook away from nest sites, but this and other local Nomada are distinctively coloured, and thus are relatively conspicuous. Both this and the following species are evidently very rare in collections, although this attribute does not necessarily entail global rarity.