Lasioglossum (Dialictus) miyabei Murao, Ebmer & Tadauchi, 2006

Murao, Ryuki, 2017, Bees of the Hemihalictus series of Lasioglossum Curtis (Hymenoptera, Halictidae) in South Korea, Zootaxa 4268 (4), pp. 451-488 : 458

Lasioglossum (Dialictus) miyabei Murao, Ebmer & Tadauchi, 2006

Figs 1 C, 2D

Lasioglossum (Evylaeus) miyabei Murao, Ebmer & Tadauchi 2006: 42 , Figs 7, 8A–B, 9, 12A (♀ ♂) [Holotype: ELKU, ♀, type locality = Botanical Garden , Sapporo, Hokkaido, Japan, examined]; Ebmer 2006: 564.

Evylaeus (Glauchalictus) miyabei: Pesenko 2007a: 26 ; Pesenko 2007b: 85 (in key), 99 (in key), 114, Figs 107–109 (♂). Lasioglossum (Dialictus) miyabei: Murao et al. 2015a: 40 , 44–45 (in key), Figs 23D, 28A (♀ ♂).

Diagnosis. According to Murao et al. (2006, 2015a), this species is separated from other east Asian members of Lasioglossum (Dialictus) by a combination of the following character states: head wider than long in both sexes (length/width ratio = 0.91–0.94 in female, = 0.94–0.98 in male); mesepisternum punctate in both sexes; female metasomal terga dimly shiny; male metasomal sterna not modified; gonostylus of male genitalia small and budlike; and penis valve of male genitalia without cleft on top.

Distribution. South Korea, Russian Far East, Japan.

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

Flower records in South Korea. The floral records are reported six species in six families by Murao et al. (2015a).

Comments. This species belongs to the atroglaucum group in the dissenting systematic (Murao et al. 2006; Pesenko 2007a, as a subgenus Glauchalictus). However, L. miyabei do not share all diagnostic character states redefined by Murao et al. (2015a). It will need to be correctly determined using phylogenetic analysis in a future study ( Murao et al. 2015a).

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: ♀.