Data Deficient.

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 : 49

Data Deficient.

32. Eupetersia (Nesoeupetersia) malayensis ( Blüthgen,

1927), Malay Smooth-Blood Bee (new combination) The type specimen of Sphecodes malayensis Blüthgen in the NHMUK proves to be a Eupetersia and is similar to the recently described Eupetersia (Nesoeupetersia) singaporensis Pauly, 2012 , and E. (N.) sabahensis Pauly, 2012 . Diagnostic characters separating Pauly’s two species such as “darker legs and larger head” of E. singaporensis were not compelling, especially in light of variability in colour, size, and shape observed in newly studied Singaporean material. For now, we treat these as provisional junior synonyms of E. malayensis pending taxonomic revision of this group. Few Asian Eupetersia have been collected by net, but these parasites appear regularly in malaise trap samples from Singapore’s mangroves.