Lasioglossum (Hemihalictus) speculinum ( Cockerell, 1925 )

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

Lasioglossum (Hemihalictus) speculinum ( Cockerell, 1925)

Fig. 6 C

Halictus perplexans var. speculinus Cockerell 1925: 11 [Holotype: U.S. National Museum of Natural History, Smithsonian Institution, Washington, D.C., USA; ♀, type locality = Preobrageniya (= Preobrazhenie) Bay (Primorsk Terr.), Russia, examined].

Lasioglossum (Evylaeus) speculinum: Ebmer 1978a: 212 ; Ebmer 1996: 294; Ebmer 2006: 573. Evylaeus (Prosopalictus) speculinus: Pesenko 2007b: 111 .

Diagnosis. Female of this species is separated from other members of the sexstrigatum group occurring in eastern Asia by a combination of the following character states: head relatively longer than wide (length/width ratio 1.07); metasoma entirely black; metasomal terga with white fimbriae on latero-apical margin; and disc of T1 basally to medially with distinct lineolation.

Specimens examined. (n = 8) [ South Korea] GW: 1♀, Chungchong , 17. v. 1984 (K. Morimoto, ELKU) ; 1♀, Hongcheon , 5–6. ix. 1984 (K. Morimoto, ELKU) ; 1♀, Gamjong-ri, Dong-myon, Chunchong-gun , 23. vii. 1992 (K. Kanmiya, ELKU) . GG: 2♀, Suigen (now Suwon ), 25. v. 1929 (K. Sato, ELKU) . GB: 1♀, Daegu, Geumho river eco park, 22. viii. 2007 (T. Mita, ELKU) . JB: 1♀, Jeonglyongchi , 16. vii. 1991 (K. Kanmiya, ELKU) . GN: 1♀, Smajeong-ri, Macheong-myon, Hamyang-gun , 9. v. 1991 (O. Tadauchi, ELKU) .

Distribution. North Korea, South Korea (new record), Russian Far East, China, Japan.

Flight period in South Korea. Female: May to September.

Flower records in South Korea. Not recorded.

Figures

FIGURE 6. A, B: metasoma. C, D: distal part of metasomal terga. E, F: basal area of T 1. A: Lasioglossum calceatum (Scopoli). B: L. albipes villosum Ebmer. C: L. speculinum (Cockerell). D, F: L. transpositum (Cockerell). E: L. sulcatulum sulcatulum (Cockerell). A – F: ♀.