Harnischia curtilamellata (Malloch, 1915)

Yan, Chun-Cai, Guo, Qin, Liu, Ting, Guo, Wei, Wang, Xin-Hua & Pan, Bao-Ping, 2016, Review of the genus Harnischia Kieffer from China (Diptera, Chironomidae), with description of one new species, ZooKeys 634, pp. 79-99 : 83-85

Taxon classification Animalia Diptera Chironomidae

Harnischia curtilamellata (Malloch, 1915) Figs 3, 4

Chironomus curtilamellata Malloch 1915: 474.

Chironomus pseudosimplex Goetghebuer 1923: 116; Edwards 1929: 390.

Chironomus (Cryptochironomus) monilis Freeman 1954a: 19.

Chironomus (Cryptochironomus) atrofasciatus Freeman 1954b: 177.

Harnischia pseudosimplex Wang S. et al. 1977: 231.

Harnischia curtilamellata : Townes 1945: 166; Sæther 1971: 347; 1977a: 88; Pinder 1978: 124; Freeman and Cranston 1980: 351; Hashimoto et al. 1981: 22; Sasa and Kikuchi 1986: 20; Sasa and Kawai 1987: 18; Ashe and Cranston 1990: 285; Cranston and Martin 1989: 270; Wang X. et al. 1993: 462; Makarchenko et al. 2005: 410; Dutta et al. 1996: 272; Wang 1999: 170; Wang 2000: 644; Chaudhuri et al. 2001: 351.

Type locality.

America (Michigan).

Material examined.

China: 3♂♂, Tianjin City, Xian River, 12.06.1985, Xinhua Wang; 1 ♂, Jiangxi Province, Poyang Lake, Nanjishan Natural Conservation area, 12.06.2004, sweep net, Chuncai Yan. 2 ♂♂, Hubei Province, Hefeng Watershed, 1200 m, 17.07.1999, light trap, Bingchun Ji; 1 ♂, Hunan Province, Zhuzhou City, Central South Forestry University, 17.07.1995, Winjun Bu; 1 ♂, Guangxi Province, Jinxiu County, 1.06.1990, Xinhua Wang; 1 ♂, Hainan Province, Ledong Li Autonomous County, Jianfengling, 17.04.1985, light trap, Leyi Zheng; 2 ♂♂, Guizhou Province, Guiyang City, Huaxi area, 1050 m, 23.07.1995, light trap,Wenjun Bu; 1 ♂, Guizhou Province, Daozhen County, Dashahe Natural Conservation area, Fairy Cave, 600 m, 30.05.2004, light trap, Hongqu Tang; 1 ♂, Guizhou Province, Jiangkou County, Fanjingshan Natural Conservation area, Black Creek, 3.06.2002, light trap, Bingchun Ji; 9 ♂♂, Yunnan Province, Dalier Seaside, 2000 m, 23.05.1996, light trap, Xinhua Wang; 3 ♂♂, Yunnan Province, Eryuan County, Niujie Town, Futian, Meici River, 2262-2332 m, 14.5°C, 24.05.1996, light trap, Changfa Zhou and Beixin Wang; 1 ♂, Yunnan Province, Lijiang City, Shigu Town, Chongjiang River, 25.05.1996, light trap, Changfa Zhou; 1 ♂, Yunnan Province, Wuding County, Mashan Stream, 1.06.1996, Xinhua Wang; 1 ♂, Yunnan Province, Zhongdian Martyr Cemetery, 3150 m, 14.07.2001, Ruilei Zhang; 28 ♂♂, Taiwan, Taibei City, Kuandu Wetland, 20.10.1988, Kanjin Ma.

Diagnostic characters.

Male. (Fig. 3 A–C) Frontal tubercles elliptical or rounded, sometimes absent. Anal point wide, shrunken and slender at the base, distally swollen like a bubble, semi-transparent, with median ridges, bearing lateral setae and microtrichia. Phallapodeme long and slender. Gonostylus widest at the base, curved in the middle and gradually tapering distally, round and blunt in the apex. Pupa. (Fig. 4 A–F) Sternite I with a pair of spinose anterolateral and anteromedian tubercles on each side; tergites III-VI with narrow, posterior robust spines; hook row medially interrupted; segment VIII without comb or spurs.

Materials examined.

China: 1P, Guangxi Zhuang Autonomous Region, Guilin City, Dingjiang County, Yangjiangtou town 6.04.2015. Wenbin Liu. 1P, China: Shandong Province, Jining City, Weishan County, Weishan Island 4.10.2015. Wenbin Liu. 5P, China: Guangdong Province, Maoming City, Linchen River 27.11.2013. Jun Liu.

Description.

Pupa [n = 8] Total length 3.2-4.9 mm. Cephalothorax brown; abdomen pale brownish.

Cephalothorax (Fig. 4A, C–D). Frontal setae 20-30 µm long, fine, arising subapically from conical, 50-100 µm long cephalic tubercles. Thoracic horn plumose, with numerous fine branches; basal ring oval. Thorax granulose dorsally, more densely granulose anteriorly. Prealar tubercle low, rounded. Scutal tubercle prominent. Wing sheath without nose; pearl row absent. Two short precorneals, 2 short antepronotals and 4 dorsocentrals present. Lengths of dorsocentrals (µm): 50-75, 38-50, 56-63, 25-40.

Abdomen (Fig. 4B, E–F). Tergite I (Fig. 4E) bare; II with posteromedian group of small points; III-VI with narrow, transverse, posterior band of robust spines; VII with a pair of anterior patches fine shagreen; VIII with a pair of anterior and posterolateral patches of shagreen. Hook row widely interrupted medially. Conjunctives bare. Pedes spurii A present on segment IV; pedes spurii B present on segment I. Sternite I (Fig. 4B) with a pair of spinose anterolateral and anteromedian tubercles each sides. Segment VIII without posterolateral comb or spurs. Segment II-IV with 3 strong L setae situated on tubercles; V-VII with 4 LS setae, VIII with 5 LS setae.

Anal lobe (Fig. 4F) 1.44-2.20 × as long as broad, with complete fringe of 31-51 lamelliform setae. Genital sac 125-220 µm long, extending beyond anal lobe.

Distribution.

China (Tianjin, Jiangxi, Hubei, Hunan, Guangxi, Hainan, Guizhou, Yunnan, Taiwan); Japan; Thailand; India; Russian Far–East; Europe; North America; Africa region (South Africa, Sudan, Sebegal, Zaire); Australian Region (Australia).

Remarks.

The Chinese specimens mainly agree with the description of Langton (1991), but the color of spinose anteromedian tubercles of sternite I is lighter than from Europe. Based on original descriptions and figures, the record of Harnischia pseudosimplex Goetghebuer in China (Hubei province; Wuhan City) by Wang S. et al. ( 1977: 231, fig. II: 15) should be Harnischia curtilamellata (Malloch).