Scrapter nitidus (Friese, 1909)

Mack, Anne & Kuhlmann, Michael, 2023, Revision of the nitidus species group of the bee genus Scrapter Lepeletier & Serville, 1828 (Hymenoptera: Apoidea), European Journal of Taxonomy 912, pp. 1-119 : 17

Scrapter nitidus subgroup

Species of the S. nitidus subgroup are defined by the following character combination: in both sexes facial fovea narrow but with a visible bottom and pronotal lobe dark brown to black. Females: propodeum partly carinate, discs of T2 and T3 finely and sparsely punctate. Males: T2–T3 with dense punctation that covers at least a third of the terga and antennal flagellum longer than compound eye.

The S. nitidus subgroup comprises 18 species ( Table 1 ) that are mostly morphologically very similar, so that species identification can be difficult. Especially identification of the females can be a problem without reference material.