Psychomyia extensa Li, Sun & Yang 1999

Peng, Lang, Wang, Bei-Xin & Sun, Chang-Hai, 2020, Four new species of Psychomyia (Trichoptera: Psychomyiidae) from China, with re-descriptions of two species, Zootaxa 4860 (2), pp. 227-242 : 235

publication ID	https://doi.org/ 10.11646/zootaxa.4860.2.5
publication LSID	lsid:zoobank.org:pub:24F73335-2E27-4353-8760-7D47E0D19F53
DOI	https://doi.org/10.5281/zenodo.4413729
persistent identifier	https://treatment.plazi.org/id/03ED8785-2D0A-B86B-FF08-FDC7FD3AF870
treatment provided by	Plazi
scientific name	Psychomyia extensa Li, Sun & Yang 1999
status

Treatment

( Figs 5 View FIGURE 5 a–5e)

Psychomyia extensa Li, Sun & Yang 1999: 416 , 462.

Description: Length of each forewing 2.9–3.1 mm (n = 10). Specimens in alcohol with compound eyes black, legs brown, dorsal surfaces of thorax and abdomen dark brown, ventral surfaces pale cream. Forewings with forks II, III, IV, and V present, crossveins s, r, m-cu and m zigzagged; hind wings with forks II, III, and V present, R 1 atrophied, but discernable, R 2+3 ending at Sc ( Figs 7e, 7f View FIGURE 7 ).

Male genitalia: Tergum IX and sternum IX distinctly separated from each other ( Fig. 5a View FIGURE 5 ). Apical sclerites discernible in dorsal view (a.s. in Fig. 5d View FIGURE 5 ), each with lower margin produced into triangular lobe at midlength. Preanal appendages subrectangular in lateral view (pre.app. in Fig. 5a View FIGURE 5 ), slightly clavate in dorsal view (pre.app. in Fig. 5d View FIGURE 5 ), with thickened bases and apices. Coxopodites fused and indistinguishable from basal plate (b.p. in Fig. 5e View FIGURE 5 ). Harpagones setose, bifid, in ventral view pincer-shaped (har. in Fig. 5e View FIGURE 5 ), each with lateral branch wider than mesal one. Phallic apparatus with phallotheca elliptical; endotheca with base having pair of processes ( Figs 5b, 5c, 5e View FIGURE 5 ), and apex having apical hook in lateral view ( Fig. 5a View FIGURE 5 ), and with ejaculatory duct opening anterior to apical hook.

Materials examined: P. R. China, An-hui Province : 100+ males, Jing County, Song Village , Ding-xi-he, 33 km E. of Jing County, 30°38′43.44″N, 118°35′30.84″E, alt. 120 m, 8 June 1990, leg. J.C. Morse & L. Yang & C. Sun GoogleMaps ; 1 male, She City , Shang-feng Village, 29°59′41.28″N, 118°21′15.84″E, alt. 164 m, 23 Apr 1991, leg. Zhao GoogleMaps ; 35 males, Xi County, Yang-jia-tan, Feng-yuan-shui, 29°58′51.53″N, 118°21′11.84″E, alt. 215 m, 24 May 1992, leg. J.C. Morse & C. Sun. GoogleMaps P. R. China, Fu-jian Province : 3 males, Wu-yi-shan City, Jiu-qu-xi, 27°38′34.15″N, 117°57′15.41″E, alt. 230 m, 30 May 1990, leg. J.C. Morse & Liu & S. Wang GoogleMaps ; 1 male, Wu-yi-shan City , Tao-yuan-dong, 100 m from Jiuqu , 27°39′30.82″N, 117°56′ 34.80″E, alt. 235 m, 31 May 1990, collected by J.C. Morse & Liu & S. Wang GoogleMaps ; 50 males, Shao-wu County, Nan-ban-qiao-cun, Jiao-xi , 40 km S.W. of Shao-wu City, 27°10′32.74″N, 117°25′23.16″E, alt. 420 m, 2 June 1990, leg. J.C. Morse & L. Yang & C. Sun. GoogleMaps P. R. China, Jiang-xi Province : 3 males, 38 km north of Cong- an, 2 km within Jiang-xi, 80 km road signs, 22°47′16.44″N, 108°6′1.80″E, alt. 550 m, 29 May 1990, leg. C. Sun GoogleMaps ; 33 males, Gui-xi city, Xi-qi-he 59 km S.E. of Gui-xi city, 28°15′34.20″N, 117°12′49.68″E, alt. 210 m, 5 June 1990, leg. L. Yang GoogleMaps ; 19 males, Long-nan County, Da-qiu-tian Conservation Station of Jiu-lian-shan National Nature Reserve, 24°21′00″N, 114°16′12″E, alt. 377 m, 10 June 2005, leg. L. Yang. GoogleMaps P. R. China, Si-chuan Province : 2 males, E-meishan 3 km W. of Jing-shui, E-mei-he, 29°34′58.44″N, 103°40′29.28″E, alt. 910 m, 1 July 1990, leg. Y. Li. & K. Chen. GoogleMaps P. R. China, Zhe-jiang Province : 3 males, Jiang-shan County, Nian-ba-du, upper stream in Zhen-xing-dun Village, 28°18′0″N, 119°32′24″E, alt. 609 m, 12 Aug 2016, leg. C. Sun & J. Xu GoogleMaps ; 24 males, Lin-an County, Xiu-xia Village , Lao-wu-li, 30°23′24″N, 119°30′0″E, alt. 466 m, 7 June 2018, leg. Y. Hu GoogleMaps ; 8 males, Lin-an county , Da-shan village, 30°24′36″N, 119°36′36″E, alt. 577 m, 8 June 2018, leg. Y. Hu GoogleMaps ; 8 males, An-ji County, Zhang-cun-zhen, Long-wangshan Scenic Zone , Da-xi-miao, 30°25′12″N, 119°24′36″ E, alt. 326 m, 9 June 2018, leg. Y. Hu GoogleMaps (all NJAU).

Distribution: China (An-hui, Fu-jian, Hu-bei, Jiang-xi, Si-chuan, and Zhe-jiang).

Remarks: The species has tergum IX incompletely fused with preanal appendages and is discernible in both dorsal and ventral views. Furthermore, the species has relatively simple harpagones. Therefore, we treat it as a member of Schmid’s P. pusilla Species Group.