Lasioglossum (Sphecodogastra) affine (Smith, 1853)

Figs 3 B, 4A

Halictus affinis Smith 1853: 64 [Syntype (s?): Natural History Museum, London, United Kingdom; ♂, type locality = Foo-chofoo, north China (= Fuzhou, Fujiang Prov.), China, examined].

Halictus leoninus Vachal 1903: 130 [Syntypes: Muséum National d’ Histoire Naturelle, Paris, France; 4♂, non ♀ (= Lasioglossum duplex), type locality = Japan]. Synonymy by Blüthgen (1926b: 348 = Halictus mandarinus).

Halictus mandarinus Strand 1910: 192 [Holotype: Museum für Naturkunde an der Humboldt Universität zu Berlin, Germany; ♀, type locality = Kiautschou, Tsingtou (now Qingdao, Shandong Prov.), China]. Synonymy by Blüthgen (1930a: 71).

Halictus nagasakiensis Strand 1910: 201 [Holotype: Museum für Naturkunde an der Humboldt Universität zu Berlin, Germany; ♀, type locality = Nagasaki, Japan]. Synonymy by Blüthgen (1922a: 54 = Halictus mandarinus).

Halictus investigator Strand 1910: 203 [Holotype: Museum für Naturkunde an der Humboldt Universität zu Berlin, Germany; ♀, type locality = Tsingtou, Iltisberge (now Qingdao, Shandong Prov.), China]. Synonymy by Ebmer (1978a: 202).

Halictus investigatoris Strand 1915: 63 [Syntypes: Senckenberg Deutsches Entomologisches Institut, Müncheberg, Germany; 2♀, type locality = Tsingtou (now Qingdao, Shandong Prov.), China]. Synonymy by Ebmer (1995).

Lasioglossum (Evylaeus) affine: Ebmer 1978a: 202; Ebmer 1995: 532; Murao & Tadauchi 2007: 181, Figs 9, 10, 11, 56B, 58B (♀ ♂), 242 (in key), 244 (in key).

Evylaeus (Evylaeus) affinis: Pesenko 2007b: 82 (in key), 89 (in key), 100, Figs 11 ‒12 (♂).

Diagnosis. This species is separated from other members of the calceatum group occurring in eastern Asia by a combination of following character states: distance between vertex and posterior ocelli long, approximetry 2.7 × of a lateral ocellus diameter in female, 2.5 × in male; male antenna short, not reaching mesoscutellum; male F2 short, nearly as long as or 1.2 × F1; and the disc of female T1 with distinct tessellation (Murao & Tadauchi 2007; Pesenko 2007b).

Specimens examined. (n = 53) [South Korea] GW: 1♀, Pupan-myon, Hongcheon-gun, 20. v. 1992 (O. Tadauchi, ELKU) ; 1♀, Bougmyong-ri, Dongsan-myon, Chunchon-gun, 21. vii. 1992 (K. Kanmiya, ELKU) . GG: 1♀, Buncheon-ri, Bongdam-eup, 23. v. 2011 (W. Kim, ELKU) . JB: 4♀, Ganggi-ri, Ibaek-myon, Namwon-si, 24. v. 2011 (W. Kim, ELKU) . GN: 1♀, Idong, Gimhae-si, 14. v. 2011 (O. Tadauchi, ELKU) . JJ: 3♀, Chonjiyen wasterfall, Sogwipo-si, 25. iv. 1997 (O. Tadauchi, ELKU) ; 2♀, Kaewol bridge, Mt. Halla-san, 26. vii. 1990 (O. Tadauchi, ELKU) ; 3♀, Kwangpyong-ri, Namjeju-gun, 23. iv. 1997 (O. Tadauchi, ELKU) ; 16♀ 1♂, Kwanumsa, alt. 500 m, Jeju-si, 14. ix. 1998 (O. Tadauchi, ELKU) ; 8♀, Myeong-do-am, alt. 400–600 m, Jeju-si, 15. ix. 1998 (O. Tadauchi, ELKU) ; 1♀, Ora-dong, Jeju-si, 23. vii. 1990 (O. Tadauchi, ELKU) ; 7♀ 1♂, Pyoson-ri, Namjeju-gun, 16. ix. 1998 (O. Tadauchi, ELKU) ; 3♀, Schwa beach, Pukjeju-gun, 25. iv. 1997 (O. Tadauchi, ELKU) .

Distribution. North Korea, South Korea, Russian Far East, China, Japan, Taiwan.

Flight period in South Korea. Female: April to September. Male: September.

Flower records in South Korea. This species has been recorded from the following at least six plant species in four families: Asteraceae: Aster yomena; Eupatorium sp.; Sonchus sp. Brassicaceae: Brassica spp. Berberidaceae: Berberis sp. Lamiaceae: Salvia japonica .