Lasioglossum (Leuchalictus) formosae ( Strand, 1910 )

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 : 522-523

Lasioglossum (Leuchalictus) formosae ( Strand, 1910)

Figs. 6B, 6 D, 7C

Halictus formosae Strand 1910: 189 [Holotype: Museum für Naturkunde an der Humboldt Universität zu Berlin, Germany, ♂, type locality = Kanshirei, Formosa ( Taiwan), examined]; Strand 1914: 152 –153 [♀].

Halictus recognitus Cockerell 1911: 664 [in key], 665 [Syntypes: Museum für Naturkunde an der Humboldt Universität zu Berlin, Germany, ♀, type locality = Taihanroku, Formosa ( Taiwan), examined]. Synonymy by Blüthgen (1922: 63). Lasioglossum (Lasioglossum) formosae: Ebmer 1978b: 309 ; Ebmer & Maeta 1999: 238 –239, 244–245 [♀♂, photograph]. Lasioglossum (Leuchalictus) formosae: Pesenko 1986: 143 [in key]; Pesenko 2006: 140 [in key], 141 [♂, illustration], 143 [♂, illustration], 145 [in key], 153.

Diagnosis. This species is similar to L. circularum and L. occidens from eastern Asia. It is separated from L. circularum by the integument of the female mesoscutum nearly smooth, the lateral and posterior surfaces of female propodeum covered with sparse tomentose hairs, and the tuft of hairs on male S6 thick apically ( Fig. 7C ); from L. occidens , it can be distinguished by the lateral and oblique carinae of the posterior surface of the female propodeum weakly developed ( Fig. 6B ) and the submedial patch of T1 with denser PP in both sexes (IS = 2 d in maximum; white circle in Fig. 6 D). In contrast, in L. circularum the integument of the female mesoscutum is distinctly tessellate, the lateral and posterior surfaces of female propodeum are covered with dense tomentose hairs, and the tuft of hairs on the male S6 are narrow apically ( Fig. 7A ); in L. occidens , the lateral and oblique carinae of the posterior surface of the female propodeum are strongly developed ( Fig. 6A ) and the submedial patch of T1 are sparser in both sexes (IS = 3.5 d in maximum; white circle in Fig. 6 C).

Specimens examined. (n = 24) [ South Korea] Seoul: 1♀, Jingwannaedong, Eunpyeonggu, 7. ix. 2010 (H.S. Lee, QIA); 1♀, Mt. Bulam-san, Gongreungdong, Nowongu, 9. ix. 2007 (H.S. Lee, QIA); Mt. Dobong-san, Dobonggu, 3♀, 22. ix. 1984 (M.J. Kang & H.G. Jeong, QIA), 1♂, 22. viii. 1988 (H.J. Sim, QIA). Incheon: 1♂, Deokjeokdo Is., Ongjin-gun, 6. viii. 1982 (J.N. Kim, QIA); 1♂, Uldo Is., Ongjin-gun, 3. viii. 1982 (J.N. Kim, QIA). GG: 1♀ 2♂, Kwangung, 2. viii. 1998 (Y. Maeta, SULE); 1♀ 1♂, Aroboretum, Suwon, 4. viii. 1999 (H.T. Kim, SNU); 1♀, Gweonheondong, Hanam, 26. ix. 2007 (S.W. Park, QIA); 1♀, Mulhyanggi arb., Osan, 2. vi. 2009 (H.S. Lee, QIA); 1♀, Sanyang, Icheon, 17. viii. 1999 (H.S. Lee, SNU); 1♀, Suridong, Gunpo-si, 6. ix. 2009 (H.S.

Lee, QIA); 1♂, Mt. Chukryeong-san, Sudongmyeon, Pocheon-gun, 28. ix. 1980 (G.G. Jang, QIA); 1♂, Mt. Cheondeok-san, Sinseomyeon, Yeocheon-gun, 12. viii. 1987 (H.J. Wu, QIA). CN: 1♀, Mt. Gyeryong-san, Gongjugun, 11. vii. 1995 (H.S. Lee, QIA); 1♀, Gunryang-ri, Cheongyang, 11. vi. 2010 (S.W. Park, QIA). GN: 1♀, Pyochungsa, Miryang, 24. vii. 2003 (H.S. Lee, QIA). JN: 1♀, Mt. Baekun-san, Gwangyang, 23. ix. 1996 (H.S. Lee, QIA); 1♂, Sangnagwoldo, Yeonggwang-gun, 15. viii. 1989 (Laim Lee, QIA).

Distribution. North Korea, South Korea (new record), China, Taiwan, Nepal, Vietnam.

Flight period in South Korea. Female: June to September. Male: August to September.

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

Figures

FIGURE 6. A, B: propodeum. C, D: submedial patch of T 1 encircled. A, C: Lasioglossum occidens (Smith). B, D: L. formosae (Strand). A, B: ♀. C, 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: ♂.