Nomada aswensis Tsuneki, 1973

Lim, Kayun & Lee, Seunghwan, 2023, A key to species of Nomada ruficornis species-group (Hymenoptera: Apidae) of South Korea, with descriptions of three new species, Zootaxa 5228 (1), pp. 44-60 : 49

Nomada aswensis Tsuneki, 1973

Figures 5−7 .

Nomada aswensis Tsuneki 1973: 100–103 ; Alexander & Schwarz 1994: 245; Mitai & Tadauchi 2007: 45–49.

Diagnosis. Body length 4.54–6.17 mm in female, 4.82–6.05 mm in male. Recognized by HTS; amber, three to four in number, posteriormost setae thin and long, the remaining short, leaf-like shaped, mostly stout but subacute apically in female; light brown, three in number, posteriormost seta thin and long, remaining slightly thicker and shorter than the posterior seta in male. Male terminalia as in Fig. 7A–F ; basoventral lobe absent.

Distribution. South Korea (new record), Japan.

Floral information. Corydalis incisa (Thunb.) Pers. (Papaveraceae) ; Ligustrum japonicum Thunb. (Oleaceae) ( Mitai & Tadauchi, 2007).

Hosts. Lasioglossum allodalum Ember & Sakagami ( Maeta et al. 1996).

Specimen examined. [NAAS] 3f#, 2m # South Korea, JJ, Tmp. Gwan Eum 17. iv. 1998, coll. Seunghwan Lee.

Remark. This species can be confused with Nomada flavoguttata ( Kirby, 1802) because of the small body size, but can be distinguished by having amber, leaf-like HTS in female. In N. aswensis male, HTS is evidently thinner and longer than N. flavoguttata male.

Figures

FIGURE 5. Nomada aswensis Tsuneki, 1973. Female. A, Habitus in dorsal view; B, Head in frontal view; C, Antennae; D, Labrum and Mandible; E, Scutellum; F, Propodeal triangle; G, HTS (Scale bar 2mm for A, 0.5mm for B–G).

FIGURE 6. Nomada aswensis Tsuneki, 1973. Male. A, Habitus in dorsal view; B, Head in frontal view; C, Antennae; D, Labrum and Mandible; E, Scutellum; F, Propodeal triangle; G, HTS (Scale bar 2mm for A, 0.5mm for B–G).

FIGURE 7. Male terminalia of Nomada aswensis Tsuneki, 1973. A, Genital capsule in ventral view; B, Genital capsule in dorsal view; C, Genital capsule in lateral view; D, Tergum 7 in dorsal view; E, Sternum 7 in ventral view; F, Sternum 8 in ventral view (Scale bar 0.2mm)