Lasioglossum (Hemihalictus) metis Ebmer, 2002

Murao, Ryuki, 2017, Bees of the Hemihalictus series of Lasioglossum Curtis (Hymenoptera, Halictidae) in South Korea, Zootaxa 4268 (4), pp. 451-488 : 461-462

Lasioglossum (Hemihalictus) metis Ebmer, 2002

Fig. 7B–C

Lasioglossum (Evylaeus) metis Ebmer 2002: 885 , Figs 228–230 (♀) [Holotype: Biologiezentrum / Oberösterreiches Landesmuseum, Linz , Austria, ♀, type locality = Qinling-Gebirge , Shaanxi Prov., China]; Murao & Tadauchi 2008b: 100, Figs 3–4 , 5B (♀ ♂).

Diagnosis. This species is similar to L. transpositum from eastern Asia. It is separated from L. transpositum by the following character states: female supraclypeus with sparser PP (IS = 3 d in maximum); female labrum with small lateral projection on distal process ( Murao & Tadauchi 2008b, Fig. 3 G); female postgena with distinct lineolation; mesepisternum nearly smooth on upper area in both sexes; and male metasomal sterna with uniform and sparse hairs. In contrast, in L. transpositum , female supraclypeus with denser PP (IS = 1.5 d in maximum), female labrum without lateral projection on distal process ( Murao & Tadauchi 2008b, Fig. 1 H), female postgena nearly smooth, mesepisternum punctate on upper area in both sexes, and male S2–S5 lateroapically with thin hair tufts ( Murao & Tadauchi 2008b, Fig. 2 F).

Distribution. South Korea, China, Japan.

Flight period in South Korea. Female: July. Males have not been recorded from South Korea. In Japan, males are collected from August to October (Murao 2014).

Flower records in South Korea. Not recorded.

Figures

FIGURE 1. A: fore wing of female. B – E: lateral habitus of four subgenera of Lasioglossum occurring in South Korea. A – B: L. (Acanthalictus) dybowskii (Radoszkowski). C: L. (Dialictus) miyabei Murao, Ebmer & Tadauchi. D: L. (Hemihalictus) transpositum (Cockerell). E: L. (Sphecodogastra) apristum (Vachal). A – E: ♀.

FIGURE 2. A, B: body color of head and mesosoma. C, D, F: mesepisternum. E: pronotum in lateral view. A: Lasioglossum ellipticeps (Blüthgen). B: L. calceatum (Scopoli). C: L. apristum (Vachal). D: L. miyabei Murao, Ebmer & Tadauchi. E, F: L. percrassiceps (Cockerell). A – F: ♀.

FIGURE 3. A: pronotum in lateral view. B, C: posterior surface of propodeum. D, E: posterior area of mesoscutum. A: Lasioglossum apristum (Vachal). B: L. affine (Smith). C: L. transpositum (Cockerell). D: L. sibiriacum (Blüthgen). E: L. hoffmanni (Strand). A – E: ♀.

FIGURE 4. A – F: inner hind tibial spur. A: L. affine (Smith). B: L. albipes villosum Ebmer. C: L. calceatum (Scopoli). D: L. nipponense (Hirashima). E: L. baleicum (Cockerell) or L. vulsum (Vachal). F: L. subfulvicorne subfulvicorne (Blüthgen). A – F: ♀. Scale bars: 0.2 mm.

FIGURE 5. A – E: mesoscutum. A: Lasioglossum laevoides Ebmer. B: L. subfulvicorne subfulvicorne (Blüthgen). C: L. vulsum (Vachal). D: L. nipponense (Hirashima). E: L. albipes villosum Ebmer. A – E: ♀.