Neoperla bimaculata Li &amp; Wang &amp; Li 2021, sp. nov.
Creators: name: Li, Wenliang
name: Wang, Yingying
name: Li, Weihai
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Perlidae
Neoperla
Neoperla bimaculata

description: <i>Neoperla bimaculata</i> sp. nov. (Figs. 1–3) <b>Adult habitus</b>. (Figs. 1a &amp; 2) Brown species with black pattern. Head mostly black except pale brown frons, slightly wider than pronotum; compound eyes blackish, basal segments of antenna yellow, distal flagella black, palpi yellow. Distance between ocelli wider than diameter of an ocellus. Pronotum laterally with two large triangular black markings, the medial pale area resembling a sandglass (Fig. 1a). Wings subhyaline, veins brown; legs dark brown with paler bands: forelegs: yellow band of femur incomplete, only distinct in ventral aspect, medial band of tibia obscure; mid- and hindlegs: medial band of femur and tibia widened, tarsi dark brown (Fig. 2). Cercus pale yellow, apical segments slightly darker (Figs. 1c &amp; 2). <b>Male</b> (Figs. 1–3). Male forewing length ca. 7.1–7.9 mm, hindwing length 6.2–6.8 mm. Tergum 7 medially slightly sclerotized and upraised, extending in a triangular process on posterior margin, the process rounded apically and covered with small sensilla basiconica (Figs. 1b &amp; 1c). Tergum 8 with a few spinules anteromedially (Fig. 1b). Tergum 9 with two lateral patches of several sensilla basiconica and hairs. Hemitergal process of tergum 10 slender, medially curved ventrally, apex blunt (Figs. 1b &amp; 1c). Aedeagus (Fig. 3): aedeagal tube plump and nearly straight, with a Y-shaped mesoventral lobe. Distal portion on dorsum, and the distal part of the Y-lobe covered with small spines. The tube is short, ca. half as long as the sac (Fig. 3). Aedeagal sac basally nearly perpendicular to the tube, medially slightly curved. The dorsum and venter have four basal and paramedial patches of large spines. <b>Female</b>. Unknown. <b>Type material.</b> Holotype: male (CAU), China: Tibet, Motuo, Beibeng, 29°14’45.11’’ N, 95°10’16.21’’E 790 m, 2017.VI.9, Wang Jianyun. Paratypes: 2 males (CAU &amp; HIST), same locality, 29°14’45.11’’ N, 95°10’16.21’’E, 880m, 2018.VI.25, Light traps, Wang Liang. <b>Etymology</b>. The specific epithet is an adjective refering to two pronotal spots. <b>Distribution</b>. China (Tibet). <b>Remarks</b>. The new species is similar to <i>Neoperla montivaga</i> Zwick, 1977 in aedeagal tube and terga 7-10. However, their color pattern and pronotum differ much: general body color of the new species is yellowish-brown, but <i>N. montivaga</i> Zwick is dark brown. The pronotum of the new species has two black spots which don’t occur in that species. Additionally, in <i>Neoperla bimaculata</i> <b>sp. nov.</b>, the mesoventral lobe of aedeagal tube is oblong and bifurcate medially whereas that structure is globular and entire in <i>N. montivaga.</i>
description: Published as part of <i>Li, Wenliang, Wang, Yingying &amp; Li, Weihai, 2021, A new species of Neoperla (Plecoptera: Perlidae) from Motuo County of Tibet China and redescription of Neoperla perspicillata Zwick, 1980, pp. 169-178 in Zootaxa 4964 (1)</i> on pages 170-172, DOI: 10.11646/zootaxa.4964.1.9, http://zenodo.org/record/4706837
description: {"references": ["Zwick, P. (1977) Ergebnisse der Bhutan-Expedition 1972 des Naturhistorischen Museums in Basel. Entomologica Basiliensia, 2, 121 - 123."]}