Chinoperla longispina Yan &amp; Wang &amp; Wang &amp; Li 2022, sp. nov.
Creators: name: Yan, Yanhua
name: Wang, Jie
name: Wang, Mingju
name: Li, Weihai
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Perlidae
Chinoperla
Chinoperla longispina

description: <i>Chinoperla longispina</i> Yan &amp; Li, sp. nov. (Figs. 4–6) <b>Diagnosis</b>. Head with large dark brown patch under brownish M-line and a triangular dark brown stigma forward of M-line. Median sclerite of male tergum 9 trapezoidal with posterior notch, covered by 6–7 stout wart-like spines. Aedeagal tube with a pair of prominent, membranous, dorsoapical lobes and a smaller, nipple-like, dorsal lobe. Aedeagal sac apically with a long median spine which is swollen at apex. <b>Adult habitus</b> (Figs. 4, 5A). General color dark brown. Head brown, with large dark brown patch under Mline and a triangular dark brown stigma forward of brownish M-line; biocellate; antennal scape brown, flagellum paler. Pronotum brownish, trapezoidal with brown rugosities and dark midline; anterior portion wider with pointed anterior corners, posterior corners obtuse. Legs brown but basal half of femora pale brown and knees dark brown; wings brown with pale area anterior to RA, veins dark brown, Sc of forewing short (Fig. 4B); cerci dark brown. <b>Male</b> (Figs. 5B–D). Body length 6.5–6.7 mm (N=2). Forewing length 8.0– 8.5 mm, hindwing length 7.0– 7.3 mm (N=4). Sterna 3–5 with hair brushes. Dark median process of tergum 9 strongly sclerotized, trapezoidal with small posteromedial notch, about 2X as long as maximum width of posterior margin, covered by several brown wart-like spines. Hemitergal processes slender and finger-like, about 2X as long as maximum width of basal callus, with an obtuse tip; parallel-sided at distal half in lateral view; basal callus slightly enlarged, with patch of sensilla basiconica. Aedeagus (Fig. 6). Aedeagal tube sclerotized dorsomedially, forming a slender rhomboid sclerite. Sac not fully everted, apical half curved dorsad, with one ventroapical and a pair of dorsoapical membranous lobe; bearing a slender elongate spine directed dorsally, the spine ca. as long as aedeagal sac and its apical portion distinctly enlarged, appearing as arrow tip in ventral aspect. <b>Female, nymph and egg</b>. Unknown. <b>Type material.</b> Holotype: male (CAU), China: Yunnan Province, Xishuangbanna Prefecture, Mengla County, Menglun Town, 55km east of Jinghong City, 22.0788 N, 101.1434 E, 900 m, 2007.IV.27–28, leg. Hui Dong. Paratypes: 3 males (CAU), same data as holotype. <b>Etymology</b>. The specific epithet refers to the long distal spine of the aedeagal sac. <b>Distribution</b>. China (Yunnan Province). <b>Remarks</b>. The new species seems closely related to <i>Chinoperla gorohovi</i> Sivec &amp; Stark, 2010 by similar head and leg patterns and aedeagal spine of aedeagal sac. However, the new species can be easily separated from <i>C. gorohovi</i> by shorter, spinulose median sclerite of tergum 9, a slender rhomboid sclerite on aedeagal tube, presence of a nipple-like ventral lobe, and much longer apical spine of aedeagal sac (compare Figs. 5A, C, 6B–D, with Figs. 2B–D, 3A, C, in present study, and figs. 2–4 in Sivec &amp; Stark (2010)). The aedeagal armatures of <i>C. longispina</i> <b>sp. nov.</b> is also similar to the Vietnamese <i>C. sila</i> Sivec &amp; Stark, 2010. However, in <i>C. sila</i>, basal portion of aedeagal tube has lateral hairs which is not found in the new species and median process of tergum 9 of <i>C. sila</i> is more circular than that of <i>C. longispina</i> (compare Figs. 5C, 6A, C and figs. 22–24 in Sivec &amp; Stark (2010)).
description: Published as part of <i>Yan, Yanhua, Wang, Jie, Wang, Mingju &amp; Li, Weihai, 2022, A new species and new record of Chinoperla Zwick, 1980 (Plecoptera: Perlidae) from Yunnan Province, China, pp. 553-560 in Zootaxa 5168 (5)</i> on pages 556-560, DOI: 10.11646/zootaxa.5168.5.4, http://zenodo.org/record/6911552
description: {"references": ["Sivec, I. &amp; Stark, B. P. (2010) Five new species of Chinoperla Zwick (Plecoptera: Perlidae) from Vietnam and Thailand. Illiesia, 6 (8), 62 - 74."]}