Lasioglossum (Lasioglossum) sutshanicum Pesenko, 1986

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 : 518-519

Lasioglossum (Lasioglossum) sutshanicum Pesenko, 1986

Figs. 3 D, 3F, 4B

Lasioglossum (Lasioglossum) sutshanicum Pesenko 1986: 135 [Holotype: Zoological Institute, Russian Academy of Sciences, St. Petersburg, Russia, ♀, type locality = Promorsk Terr., Russia, examined]; Pesenko 2006: 137 [in key], 149; Ebmer 2006: 549 –550 [♂], 584–585 [♂, photograph and illustration].

Diagnosis. This species is similar to L. proximatum (Smith) from eastern Asia. Females of both species are easily separated by the lateral carina of the propodeum. In L. sutshanicum the carina is incomplete ( Fig. 3 D) whereas in L. proximatum the carina is complete, extending dorsally to a transverse carina ( Fig. 3 C). The male of L. sutshanicum was not examined in the present study. However, judging from an illustration of Ebmer (2006, Fig. 10), the ventral retrorse lobe of the male genitalia has an isosceles triangle form. In contrast, in L. proximatum , the ventral retrorse lobe is broad and trapezoidal.

Specimens examined. (n = 156) [ South Korea] GW: 5♀, Myeongwol-ri, Seo-myon, Chuncheon-shi, 20. iv. 2002 (Y. Maeta, SULE); 1♀, Anhun-myon, Hoengsong-gun, 19. iv. 1994 (O. Tadauchi, ELKU); 15♀, Bougmyongri, Dongsan-myon, Chunchon-gun, 23–24. v. 1992 (O. Tadauchi, ELKU); 1♀, Dongsang-myon, Chunchon-gun, 16. iv. 1994 (O. Tadauchi, ELKU); 13♀, Jansudae, Inje-gun, 17. iv. 1994 (O. Tadauchi, ELKU); 9♀, Ohsaenk-ri, Yangyang-gun, 17. iv. 1994 (O. Tadauchi, ELKU); 2♀, Pupan-myon, Hongcheon-gun, 20. v. 1992 (O. Tadauchi, ELKU); 6♀, Soucho-myon, Wonju-gun, 20. iv. 1994 (O. Tadauchi, ELKU); 16♀, Taegwallyong, Myongju-gun, 19. iv. 1994 (O. Tadauchi, ELKU); 1♀, Mt. Gujeol-san, Hongcheon, 8. v. 1998 (SNU); 5♀, Sangwonsa temple, Mt. Chiak-san, Seongnam-ri, Sinrimmyeon, Wonju-si, 26. v. 2009 (H.S. Lee, QIA). Seoul: 1♀, Mt. Gwanak-san, Sinlimdong, Gwanakgu, 4. vi. 1988 (SNU). GG: Kwangnung, Pochon-gun, 3♀, 24. iv. 1992 (O. Tadauchi, ELKU), 23♀, 19. v. 1992 (O. Tadauchi, ELKU); Apiary, Gwangju, 1♀, 19. iv. 1996 (H.S. Lee, SNU), 18. iv. 1997 (H.S. Lee, SNU); Aroboretum, Suwon, 1♀, 18. iv. 1999 (H.T. Kim, SNU), 1♀, 5. v. 1999 (H.T. Kim, SNU), 1♀, 20. v. 1999 (H.T. Kim, SNU); 1♀, CALS, Suwon, 21. iv. 1994 (H.S. Lee, SNU); 1♀, Gwangju, 9. v. 1992 (SNU); 1♀, Mt. Chilbo-san, 18. vi. 1992 (D.G. Park, SNU); 1♀, Mt. Gwanggyos-san, Suwon, 7. v. 1990 (SNU); 1♀, Namhansanseong, Hanam-si, 5. vi. 1988 (SNU); 1♀, SEI, Seodundong, Suwon, 16. iv. 2001 (H.S. Lee, QIA); 1♀, Surisan, Anyang, 19. vi. 1983 (B.H. Lee, SNU); 1♀, Weoncheon, Suwon, 25. v. 1990 (J.M. Choi, SNU). CB: 1♀, Jugryeong rest area, Danyang, 9. v. 1997 (H.S. Lee, SNU); 1♀, Danyaneup, Danyan-gun, 10. v. 1997 (H.S. Lee, SNU); 1♀, river side Danyang, 10. v. 1997 (H.S. Lee, SNU). GB: 1♀, Gilan, Andong, 28. iv. 1994 (SNU); 1♀, Mt. Sinbul-san, Yangsan, 27. iv. 2003 (H.S. Lee, QIA); 8♀, Pyochungsa, Miryang, 26. iv. 2003 (H.S. Lee, QIA). JB: 1♀, Kanki-ri, Iipaekmeon, Namweon-gun, 16. v. 1991 (O. Tadauchi, ELKU); 1♀, Sanlyong-ri, Sannae-myon, Namweon-gun, 2. v. 1992 (O. Tadauchi, ELKU); 3♀, Simwon, Mt. Jiri-san, 5. vi. 1996 (H.S. Lee, QIA). GN: 2♀, Shinwon-ri, Unmun, Chongdo-gun, 26–27. iv. 2003 (Y. Maeta, SULE); Samjeon-ri, Macheong-myon, Hamyanggun, 4♀, 9. v. 1991 (K. Morimoto, ELKU), 1♀, 11. v. 1991 (O. Tadauchi, ELKU); 6♀, Changnyeong, 11. iv. 1997 (H.S. Lee, QIA). JN: 1♀, Chusan, Gwangyang-si, 14. viii. 2002 (T.K. Lee, SNU). JJ: 2♀, Mt. Halla-san, alt. 300– 550 m, Haean-dong, 26. iv. 1997 (J.-c. Paik & O. Tadauchi, ELKU).

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

Flight period in South Korea. Female: April to August. Males have not been recorded from South Korea. In the Russian Far East, the male was collected in August ( Ebmer 1996).

Flower records in South Korea. This species has been recorded from the following at leadt 13 plant species in 9 families: Aceraceae : Acer ginnala Maxim. var. aidzuense (Franch,) Pax. Asteraceae : Cornus spp. Brassicaceae : Brassica spp. Caprifoliaceae : Lonicera spp. Ericaceae : Rhododendron mucronulatum Turcz. ; R. schlippenbachii Maxim. ; R. spp. Rhamnaceae : Rhamnus davurica Pall. Rosaceae : Amygdalus persica L.; Crataegus sp.; Prunus spp. Salicaceae : Salix sp. Styracaceae : Styrax obassia Siebold & Zucc.

Figures

FIGURE 3. A, B: metapostnotum of propodeum. C, D: propodeum. E, F: supraclypeus. A: Lasioglossum exiliceps (Vachal). B, E: L. primavera Sakagami & Maeta. C: L. proximatum (Smith). D, F: L. sutshanicum Pesenko. A – F: ♀.