Lasioglossum (Leuchalictus) nipponicola Sakagami & Tadauchi, 1995

Murao, Ryuki, Lee, Heung-Sik & Tadauchi, Osamu, 2015, Bees of the Lasioglossum series (Hymenoptera: Halictidae) in South Korea, with an illustrated keys to species, Zootaxa 4044 (4), pp. 511-534 : 525

Lasioglossum (Leuchalictus) nipponicola Sakagami & Tadauchi, 1995

Figs. 2C–D, 5A, 8A

Lasioglossum (Lasioglossum) nipponicola Sakagami & Tadauchi 1995: 177 –181, 184 [♀♂, illustration] [Holotype: Hokkaido University, Sapporo, Hokkaido, Japan, ♀, type locality = Hokkaido, Japan].

Diagnosis. This species is similar to L. kansuense (Blüthgen) from eastern Asia. It is separated from L. kansuense by the female mesoscutum and mesoscutellum mixed with dark hairs, the lower declivitous surface of female T1 with sparser PP (IS = 4.5 d in maximum; Fig. 5A ), and the apical part of hair tuft on male S6 small and short ( Fig. 8A ).

In contrast, in L. kansuense , the female mesoscutum and mesoscutellum with only pale yellowish to brown hairs, the lower declivious surface of female T1 with denser PP (IS = 2 d in maximum; Fig. 5B ), and the apical part of hair tuft on male S6 longitudinally ellongate ( Fig. 7D ).

Specimens examined. (n = 107) [ South Korea] GW: 1♀, Hongcheon, 5–6. ix. 1984 (K. Morimoto, ELKU); 1♀, Gamjong-ri, Dong-myon, Chunchon-gun, 21. v. 1992 (O. Tadauchi, ELKU); 1♀, Baekdamsa temple, Mt. Seorak, Sokcho-si, 6. ix. 2010 (H.S. Lee, QIA); 1♀, Gangchon, Gapyeong-gun, 5. vi. 1994 (S.G. Park, QIA); 1♀, Jingogae, Mt. Odae-san, Pyeongchang, 27–28. vii. 2001 (H.S. Lee, QIA); 1♀, Misiryeong rest area, Mt. Seolaksan, 1. iv.–24. vi. 2010 (J.C. Jeong, QIA); 1♀, Mt. Chiak-san, Hoengseong, 15. viii. 1999 (S.W. Park, QIA); 2♀, Mt. Gujeonl-san, Hongcheon, 28. v. 1998 (K.S. Woo, SNU); 3♀, Sangwonsa temple, Mt. Chiak-san, Seongnam-ri, Sinrimmyeon, Wonju-si, 26. v. 2009 (H.S. Lee, QIA); 1♀, Uiwang ecobridge, Uiwang, 10. viii. 2000 (J.H. Baeck, QIA). Seoul: 1♀, Mt. Dobong-san, Dobonggu, 22. ix. 1984 (M.J. Kim, QIA). Incheon: 1♀, Mt. Mari-san, Ganghwado, Ganghwa-gun, 12. viii. 1995 (G. Choi, QIA). GG: 1♀, Kwangung, 2. viii. 1998 (Y. Maeta, SULE); 1♀, Aroboretum, Suwon, 4. viii. 1999 (H.T. Kim, SNU); 1♀, CALS. Suwon, 8. vi. 1995 (S.G. Park, SNU); 1♀, Eungogae, Gwangju, 13. ix. 1984 (Y.S. Han, QIA); 2♀, Mt. Gwanggyo-san, Suwon, 29. v. 1990 (SNU); 1♀, Mt. Myeongji-san, Gapyeong-gun, 23. ix. 1989 (S.J. Jo, QIA); 1♀, Suridong, Gunpo-si, 13–14. v. 2000 (S.W. Park, QIA). CN: 1♀, Mt. Gyeryong-san, Gongju-gun, 11. vii. 1995 (H.S. Lee, QIA); 1♀, Ilam-ri, Seongyeonmyeon, Seosan-si, 20. v. 2006 (H.S. Lee, QIA). GB: 1♀ 10♂, Naribunji, Ulreung Is., 11. viii. 1999 (H.T. Kim, SNU); 6♂, Bongraepokpo fall, Ulreung Is., 12. viii. 1999 (H.T. Kim, SNU). JB: 1♂, Yupyeong, Mt. Jiri-san, 23. viii. 1999 (S.W. Shin, SNU); 1♀, Simwon, Mt. Jiri-san, 5. vi. 1996 (H.S. Lee, QIA). GN: 2♀ 1♂, Pyochungsa, Miryang, 24. vii. 2003 (H.S. Lee, QIA). CB: 1♀, Mt. Wolak-san, Chungju-si, 14. ix. 1996 (H.S. Lee, QIA). JN: Chusan, Gwangyang-si, 3♀, 24. vi. 1995 (T.K. Kim & D.P. Seo, SNU), 1♀, 14. viii. 2002 (H.S. Park, SNU); 2♀, Dabgok, Mt. Baekun-san, Gwangyang-si, 26. vi. 1994 (S.N. Kim, SNU); 1♀, Keumsan, Namhae, 7. viii. 1994 (H.S. Lee, SNU); Mt. Baekn-san, 1♀, 24. vi. 1995 (H.K. Shin, SNU), 1♂, 23. vi. 2001 (H.S. Lim, SNU); Piagol, Mt. Jiri-san, 1♂, 13. viii. 1979 (G.H. Jeong, SNU), 1♀, 25. iv. 1999 (H.T. Kim, SNU). JJ: 1♂, High resting area, Mt. Halla-san, alt. 1100 m, Pukcheju-gun, 12. ix. 1998 (O. Tadauchi, ELKU); 1♂, Kaewol bridge, Mt. Halla-san, 26. vii. 1990 (O. Tadauchi, ELKU); 1♀, Mt. Halla-san, alt. 1700–1800 m, 25. vii. 1990 (O. Tadauchi, ELKU); 2♀, Myeong-do-am, alt. 400–600 m, Jeju-shi, 15. ix. 1998 (O. Tadauchi, ELKU); 2♀ 1♂, Orimok-Haeandong, alt. 500–900 m, Jeju-shi, 13. ix. 1998 (O. Tadauchi, ELKU); Yonsil, Mt. Halla-san, 29♀, 24. vii. 1990 (O. Tadauchi, ELKU), 1♂, 27. vii. 1990 (O. Tadauchi, ELKU); 1♀ 1♂, Jocheon, 6. viii. 2003 (H.S. Lee, QIA); 2♂, Seoguipo, 8. ix. 2001 (H.S. Lee, QIA).

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

Flight period in South Korea. Female: April to September. Male: June to September. In Japan, male flies from August to October (Murao 2014).

Flower records in South Korea. This species has been recorded from the following 13 plant species in 6 families: Asteraceae : Aster yomena (Kitam.) Honda ; Aster sp.; Cirsium vulgare (Savi) Ten. ; Galinsoga quadriradiata Ruiz & Pav. ; Ligularia fischeri (Ledeb.) Turcz. ; Rudbeckia laciniata L. 'Hortensis'; R. sp.; Sonchus brachyotus DC. Brassicaceae : Impatiens noli-tangere L. Caprifoliaceae : Weigela subsessilis (Nakai) L.H. Bailey. Fabaceae : Lespedeza bicolor Turcz. Styracaceae : Styrax japonica Siebold & Zucc. Verbenaceae : Phryma leptostachysa L. subsp. asiatica (H. Hara) Kitam.

Comments. Pesenko (2006) synonymized this species under Lasioglossum agelastum Fan & Ebmer, 1992 from China. However, the hair tufts on male S6 of L. nipponicola from both South Korean and Japanese specimens (including some paratypes) are quite different from a paratype of L. agelastum ( Ebmer 2002, Fig. 36). Based on this we do not consider these two names as synonymous. This synonymy will need to be reexamined including DNA analysis in a future study.

Figures

FIGURE 5. A, B: basal area of T 1. C, D: mesoscutum. A: Lasioglossum nipponicola Sakagami & Tadauchi. B: L. kansuense (Blüthgen). C: L. denticolle (Morawitz). D: L. occidens (Smith). A – D: ♀.

FIGURE 8. A – D: hair tufts on S 6. A: Lasioglossum nipponicola Sakagami & Tadauchi. B: L. occidens (Smith). C: Lasioglossum subopacum (Smith). D: L. upinense (Morawitz). A – D: ♂.

FIGURE 7. A – D: hair tufts on S 6. A: Lasioglossum circularum Fan & Ebmer. B: L. denticolle (Morawitz). C: L. formosae (Strand). D: L. kansuense (Blüthgen). A – D: ♂.