Enithares sinica (Stål, 1854)

Zettel, Herbert, Lane, David J. W., Pangantihon, Clister V., Freitag, Hendrik & Be, Jalan Tungku Link, 2012, Notes on Notonectidae (Hemiptera: Heteroptera) from southeastern Asia, mostly from Brunei and the Philippines, Acta Entomologica Musei Nationalis Pragae 52 (1), pp. 29-48 : 41-42

Enithares sinica (Stål, 1854)

( Figs. 12 , 17, 19 )

Enithares sinica Stål, 1854: 241 ; LANSBURY (1968: 378); NIESER (1998: 12).

Material examined. CHINA *: ‘China Coll. Signoret’, ‘ sinica Stal det. Signoret’, ‘ Compared with the original type in Stockholm colln., by G. W. Kirkaldy. ’, 2 ♀♀ ( NHMW; these specimens may represent paralectotypes). YÜNNAN: Symao [= Simao], 1400 m a.s.l., 10.v.1957, leg. Ban Shu-yun [= Wang Shu-Yong], 1 J 2 ♀♀ ( NMPC) ; Syaomon’yan [= Xiaomengyang], 850 m a.s.l., 4.v.1957, leg. Van Shu-yun [= Wang Shu-Yong], 3 JJ 3 ♀♀ ( NMPC, NHMW) ; Syaomon’yan [= Xiaomengyang], 950 m a.s.l., 4.v.1957, leg. Tszan Lin-yao [= Zang Ling-Chao], 1 J 4 ♀♀ ( NMPC) ; Syaomon’yan [= Xiaomengyang], 850 m a.s.l., 4.v.1957, leg. Lyan Tsyu-chzhen [= Liang Qiu-Zhen]’, 1 J ( NMPC) ; Syaomon’yan [= Xiaomengyang] environs, 940 m a.s.l., 5.v.1957, leg. Zhun Guan-di [= Hong Guang-Ji], 1♀ ( NMPC) ; Cheli-Damon-Lun [= Cheli-Damenglong ], 640 m a.s.l., 29.iv.1957, leg. Van Shu-yun [= Wang Shu-Yong], 5 ♀♀ ( NMPC) ; 30. km southwest of Tszin’pin [= Jinping, Mengla], 370 m a.s.l., 30.iv.1956, leg. Khuan Ke-zhen’ [= Huang Ke-Ren et al.], 1 ♀ ( NMPC) ; Xishuangbanna Dai Autonomous Prefecture, Mengla County, Mengyüan Village, ca. 50 km southsoutheast of Menglun , 700 m a.s.l., pools, 8.xi.1999, leg. M.A. Jäch, H. Schönmann, M. Wang & Y. Wei (CWBS loc. 362), 1 J ( NHMW) ; Xishuangbanna Dai Autonomous Prefecture, Mengla County, near Mengla , 700 m a.s.l., pools, 9.xi.1999, leg. M. A. Jäch, H. Schönmann, M. Wang & Y. Wei (CWBS loc. 366), 1 J 6 ♀♀ ( NHMW). GUANGXI: Liuzhou Prefecture, 10 km northeast of Liuzhou City , Shanmenjiang Forest Station ; small stream, 200 m a.s.l., 10.xi.1993, leg. H. Schillhammer (17) [= CWBS loc. 38], 1 J 3 ♀♀ ( NHMW) ; Liuzhou Prefecture; 10 km northeast of Liuzhou City ; 3 km northwest of Shanmenjiang Forest Station ; small stream, 150–200 m a.s.l., 11.xi.1993, leg. H. Schillhammer (18a) [= CWBS loc. 40], 1 ♀ ( NHMW) ; Guilin Prefecture , Lipu County ; 120 km south of Guilin, 80 km east of Liuzhou City ; Siuren Village , fast flowing stream, 350 m a.s.l., 12.xi.1993, leg. H. Schillhammer (19) [= CWBS loc. 41], 1 J ( NHMW) ; Yülin Prefecture, Liuwan Da Shan , small, steep mountain streams on the southern slope of Kui Shan Ding (= Helmet Mountain ), 600–700 m a.s.l., 17.xi.1993, leg. H. Schillhammer (21) [= CWBS loc. 43], 1 J ( NHMW). HUBEI: Enshi, 25 km north of Badong , 450 m a.s.l., 20.x.2004, leg. H. Schönmann & M. Wang (CWBS loc. 545), 1 ♀ ( NHMW). HUNAN: Huaihua Prefecture, Huitong County, Guangping Township , Moshao Village , 15 km west of Guangping , 5 km north of Upper Forest Research Station , rain water pools, 350 m a.s.l., 4.xi.1993, leg. H. Schillhammer (10a) [= CWBS loc. 31], 1 J 1 ♀ ( NHMW). FUJIAN: Wuyi Mountain , Guadun [Kuatun, Fukien], leg. Tschung Sen, 9.vii.1946, 2 JJ ; 12.vii.1946, 1 J; 15.vii.1946, 9 JJ 7 ♀♀; 22.vii.1946, 4 JJ 10 ♀♀; 27.vii.1946, 2 JJ; 15.viii.1946, 2JJ ( NMPC, NHMW) ; Wuyi Mountain, Guadun [Kuatun, Fukien], 2300 m a.s.l., 27.40°N 117.40°E, 25.vii.1946, leg. J. Klapperich, 2 ♀♀ ( NMPC). GUANGDONG: Zhaoqing Prefecture, Zhaoqing County, southeastern margin of Dinghu Nature Reserve , near Zhuzhai Village , northeast of Dinghu Town , 20–40 m a.s.l., 23°11′03″N 112°33′06″E, small pools, 29.x.2001, leg. M.A. Jäch & A. Komarek (CWBS loc. 452), 2 JJ 2 ♀♀ ( NHMW) ; Zhaoqing Prefecture, Zhaoqing County, Dinghu Nature Reserve , 50–150 m a.s.l., at light, 30.x.2001, leg. M. A. Jäch & A. Komarek, 1 ♀ ( NHMW) ; Zhaoqing Prefecture, Fengkai County, 50 km east of Fengkai, 5 km west of Qixing , Yulao –Mocun road, below Heishiding Nature Reserve head office, 150 m a.s.l., 23°27′36″N 111°54′36″E, River Qixing , 31.x.+ 2.xi.2001, leg. M.A. Jäch & A. Komarek (CWBS loc. 455), 1 ♀ ( NHMW) ; Zhaoqing Prefecture, Fengkai County, 50 km east of Fengkai, 5 km west of Qixing , Yulao –Mocun road, Heishiding Nature Reserve , 300–400 m a.s.l., 23°27′04″N 111°53′53″E, small streams through primary forest, 1.xi.2001, leg. M. A. Jäch & A. Komarek (CWBS loc. 456), 1 ♀ ( NHMW) ; Zhaoqing Prefecture, Huaiji County, 35 km northeast of Huaiji, Huaiji –Yangshan road, near Sanmianliang Village , 130 m a.s.l., 24°00′25″N 112°26′09″E, River Madi , 3.xi.2001, leg. M. A. Jäch & A. Komarek (CWBS loc. 463), 1 J ( NHMW) ; Shaoguan Prefecture, Ruyuan County, Chengjia–Ruyuan road, 40 km southwest of Ruyuan , 550 m a.s.l., 24°40′36″N 113°05′16″E, pools, 5.xi.2001, leg. M. A. Jäch & A. Komarek (CWBS loc. 472), 2 JJ ( NHMW) ; Shaoguan Prefecture, Shixing County, 10 km southwest of Chebaling Village, at Jiangciao Village , Chebaling –Siqian road, 270 m a.s.l., 24°41′11″N 114°07′17″E, pools, 7.xi.2001, leg. M. A. Jäch & A. Komarek (CWBS loc. 472), 1 J ( NHMW) ; Shaoguan Prefecture, Shixing County, 5 km west-south-west of Chebaling Village , 2 km northeast of Jiangciao Village , 330 m a.s.l., stream through primary forest, 7.xi.2001, leg. M. A. Jäch & A. Komarek (CWBS loc. 478), 1 J ( NHMW). HAINAN: Tongza City Region , Mao’an Town , 250 m a.s.l., rice fields, 20.i.1996, leg. M. A. Jäch (CWBS loc. 200), 1 J ( NHMW) ; Ledong County, Jianfeng Mountains, 5 km east of Tian Chi Village , 800 m a.s.l., fish pond, 23.i.1996, leg. M. A. Jäch (CWBS loc. 209), 1 J ( NHMW) ; Ledong County, Jianfeng Mountains, Tian Chi Village , 750 m a.s.l., pool, 23.i.1996, leg. M.A. Jäch, L. Ji & M. Wang (CWBS loc. 211), 1 J ( NHMW) . TAIWAN: Nantou County, Wucheng (‘ Fuhosho’ ), v.1909, leg. H. Sauter S.v., 1 ♀ ( NHMW) ; Kaohsiung County, Kaohsiung (‘ Takao’ ), 10.iii.1907, leg. H. Sauter S.v., 1 J ( NHMW) ; Miaoli County, Tunghsiao , 25.ix.1994, leg. L. J. Wang, 2 ♀♀ ( NHMW) . LAOS: CHAMPASAK PROVINCE: Bolavens Plateau, Paksong , 1250 m a.s.l., 27.xii.1995, leg. P. Schwendinger, 5 JJ 3 ♀♀ ( NHMW) . VIETNAM: LAO CAI PROVINCE: Ta Phinh, 1400 m a.s.l., 23.xi.1971, leg. Topál & Matskási (No. 82), 3 JJ 3 ♀♀ ( HNHM, NHMW). DONG NAI PROVINCE: Nam Cat Tien National Park , 1–15.v.1994, leg. P. Pacholátko & L. Dembický, 1 J 5 ♀♀ ( NHMW). SO LA PROVINCE: Moc Chau, 800 m a.s.l., 24–26.x.1986, leg. T. Vásárhelyi (93), 2 JJ 1 ♀ ( HNHM). HOA BINH PROVINCE: Hoa Binh, 500 m a.s.l., 21.x.1986, leg. T. Vásárhelyi (83), 1 ♀ ( HNHM). VINH PHUC PROVINCE: Tam Dao, 1200 m a.s.l., collected at light, 13.x.1986, leg. T. Vásárhelyi (37), 1 ♀ ( HNHM) . MALAYSIA: KELANTAN: 30 km northwest of Gua Musang, Kampong Sungai Om, slopes of Bukit Ulu Lalat , 800–1000 m a.s.l., 4°59′– 5°00′N 101°52–53′E, 21.vi.–14.vii.2010, leg. P. Cechovsky, 2 JJ 6 ♀♀ ( NHMW) .

Notes. The male of E. sinica possesses a large tooth on the metafemur ( Fig. 12 ) and a spur on the mesotrochanter, both characters being absent in the female (see Fig. 17 for mesotrochanter). The shape of the metaxiphus ( Fig. 19 ) is characteristic for both sexes. See also notes for E. intha .

Distribution. Enithares sinica is widespread in subtropical Japan, China, Taiwan, and Vietnam ( LANSBURY (1968) and references therein; see also POLHEMUS (1995), CHENG et al. (2006), NIESER et al. (2008); and material listed above). NIESER (1998) lists E. sinica for ‘ Laos and Cambodia’, NIESER et al. (2008) published a detailed record for Laos (based on specimens in NHMW listed above) and several for China (Henan, Hubei, Gunagdong, Sichuan, Yunnan). The species is still entirely unknown from Thailand. In this paper we present the first collection data from West Malaysia, which is a considerable southwards expansion of the known distribution. The species was previously unknown from the Malesian biogeographical region.

Figures

Figs. 8–13. Notonectinae. Habitus, dorsal aspect: 8 – Aphelonecta philippina Zettel, 1995, male. 9 – Enithares freyi Brooks, 1948, male. 10 – E. intha Paiva, 1918, female. 11 – E. quadrispinosa Lansbury, 1967, male. 12 – E. sinica (Stål, 1854), male. 13 – E. subparallela Lansbury, 1968, male. © NHMW Hemiptera Image Collection.

Fig. 14–19. Enithares Spinola, 1837, morphological details. 14–15 – lateral arms of basal plate of aedeagus, left aspect: 14 – E. freyi Brooks, 1948; 15 – E. quadrispinosa Lansbury, 1967. 16–17 – left mesotrochanter of female, ventral aspect: 16 – E. intha Paiva, 1918 (sp = spur); 17 – E. sinica (Stål, 1854). 18–19 – metaxiphus of female, ventral aspect: 18 – E. intha; 19 – E. sinica.