Bees of the Hemihalictus series of Lasioglossum Curtis (Hymenoptera, Halictidae) in South Korea Author Murao, Ryuki text Zootaxa 2017 4268 4 451 488 journal article 33026 10.11646/zootaxa.4268.4.1 e9f2bc10-d1ef-4e84-86ca-c6243b97ce80 1175-5326 580871 BFD371ED-AFDE-49E5-9908-797402B08670 Lasioglossum ( Hemihalictus ) sakagamii Ebmer, 1978 Figs 7A, 11A Lasioglossum ( Evylaeus ) sakagamii Ebmer 1978a : 207 , Fig. 12 ( ♀ ♂ ) [ Holotype : Alexander Koenig Museum , Bonn , Germany , ♀ , type locality = Mandschurei , Harbin , Heilongjiang Prov., China ]; Sakagami et al . 1982 : 207 . Evylaeus ( Microhalictus ) sakagamii : Pesenko 2007b : 84 (in key), 93 (in key), Figs 80–82 ( ♂ ). Diagnosis. This species is similar to L. amurense (Vachal) from eastern Asia and L . quadrinotatulum (Schenck) from Europe to eastern Asia. It is separated from these species by a combination of following character states: female mesoscutum with sparser PP (IS = 6 d in maximum); male F3 length/width ratio 1.2; male S2–S3 normal; gonocoxite of male genitalia not densely haired; and gonostylus of male genitalia basally narrow and apically expanded, and without basomedial projection. In contrast, in L. amurense , female mesoscutum with denser PP (IS = 3 d in maximum), male F3 length/width ratio 1.6, the male S2–S3 tuberculate, gonocoxite of male genitalia densely haired, and gonostylus of male genitalia slender and parallel-sided, and with basomedial projection; in L. quadrinotatulum , female mesoscutum with denser PP (IS = 4 d in maximum), male F3 length/width ratio 1.5, male S2–S3 normal, gonocoxite of male genitalia not densely haired, and shape of gonostylus of male genitalia similar to L. sakagamii , but with basomedial projection ( Sakagami et al . 1982 ). Specimens examined. (n = 5) [ South Korea ] GW : 2♀ , Bougmyong-ri, Dongsan-myon, Chunchon-gun, 23. v. 1992 ( O. Tadauchi , ELKU ) ; 2♀, Gamjong-ri, Dong-myon, Chunchon-gun, 25. iv. 1992 (O. Tadauchi, ELKU). GG : 1♀, Kwangung, 2. viii. 1998 (Y. Maeta, SULE). Distribution. North Korea , South Korea (new record), Mongolia , Russian Far East, China , Japan . Flight period in South Korea. Female: April to August. Males have not been recorded from South Korea. In Japan, males are collected from July to October (Murao 2014). Flower records in South Korea . Aster sp. ( Asteraceae ), Crataegus sp. ( Brassicaceae ), Capsella sp. ( Brassicaceae ).