Hemacroneuria elongata Li &amp; Mo &amp; Murányi 2019, sp. nov.
Creators: name: Li, Weihai
name: Mo, Raorao
name: Murányi, Dávid
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Perlidae
Hemacroneuria
Hemacroneuria elongata

description: <i>Hemacroneuria elongata</i> sp. nov. <b>(</b> Figs. 1–4) <b>Adult habitus</b>. General color brown to dark brown with distinct light markings. Head brownish with a large wingshaped dark brown marking located from central occiput and anterior of tentorial callosities to pale M-line; a trapezoidal dark brown median marking is located between central M-line and clypeus. Triocellate, anterior ocellus much smaller, distance between posterior ocelli nearly half of distance from eyes. Antennae brown; scape and pedicel slightly darker; palpi brownish. Pronotum nearly black with lighter rugosities and contrasting whitish lateral margins, corners obtuse and lateral margins circularly or triangularly convex. Legs uniformly brown. Wings brown but costal area pale, veins brown. <b>Male</b> (Figs. 1–3). Forewing length 11.5–12.0 mm. Abdomen yellowish brown, segments 1–8 unmodified. Tergum 10 is bearing a pair of darker knobs laterally to large triangular patches of sensilla basiconica separated by longitudinal median membranous band (Figs. 2 c–d). Paraprocts strongly curved forward, generally triangular but inner margin apparently semicircular, apex acute and outcurved (Figs. 1 c–d, 2a, c–d). Hammer large, circular and covered by dark granules, slightly elevated toward triangular tip in lateral view, positioned over midlength of the sternum and flanked by brown posterolateral margin of sternum 9 (Figs. 1e, 2b). Aedeagus (Fig. 3) membranous, tubular in shape but apex enlarged and trilobed. Basal portion in ventral view with longitudinal and transverse wrinkles, a central elliptical patch of scales, and a round subapical median lobe. The lateral lobes of apex ear-like in dorsal view, subquadrate in lateral view, about ½ width of the tubular base. The single median apical lobe is nearly of the same size as lateral lobes, with many oblique wrinkles and dense microtrichia on the basoventral projection. <b>Female</b> (Fig. 4). Forewing length 13.0– 13.5 mm. Abdomen yellowish brown, segments 1–7 unmodified. Subgenital plate wide and projecting over base of paraprocts; posterior margin deeply notched; notch wide and round between a pair of large triangular lobes (Fig. 4b). <b>Type material</b>. Holotype male (NMP): China: Sichuan Province, 37 km N Baoxing, Qiao Qi vill., Jiajin Shan National Forest Park (individually from vegetation, flowering <i>Rosa</i>; marsh; along stream), 30°41.2’N 102°42.3’E, 2480 m, 14–16.VI.2014. leg. J. Hájek, J. R&amp;uring;&amp;zcaron;i&amp;ccaron;ka &amp; M. Tko&amp;ccaron;. Paratypes: same locality and date: 1&amp;male; 1&amp;female; (HIST), 1&amp;female; (NMP). <b>Etymology</b>. The specific name refers to the elongated subgenital plate of the female. <b>Distribution</b>. China (central Sichuan). <b>Affinities</b>. The new species is most similar to <i>H. marginalis</i> Stark &amp; Sivec, 2008 described from Vietnam. Both species have similar head marking (Figs. 1 a–b, 4a) and tergum 10 of the male. <i>Hemacroneuria elongata,</i> however, can be distinguished by the apically outcurved male paraprocts (Figs. 1c, 2a, d) and in the female by the deep and wide posterolateral notch (Fig. 4b) of the subgenital plate. The subgenital plate of <i>H. marginalis</i> has a small shallow posterolateral notch.
description: Published as part of <i>Li, Weihai, Mo, Raorao &amp; Murányi, Dávid, 2019, Additions to the genus Hemacroneuria Enderlein (Plecoptera: Perlidae) from China, pp. 349-358 in Zootaxa 4652 (2)</i> on page 350, DOI: 10.11646/zootaxa.4652.2.7, http://zenodo.org/record/3363846
description: {"references": ["Stark, B. P. &amp; Sivec, I. (2008) Systematic notes on Kiotina Klapalek and Hemacroneuria Enderlein (Plecoptera: Perlidae), with description of four new species. Illiesia, 4 (17), 161 - 175."]}