Flavoperla galerispina Mo &amp; Wang &amp; Li 2020, sp. nov.
Creators: name: Mo, Raorao
name: Wang, Guoquan
name: Li, Weihai
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Perlidae
Flavoperla
Flavoperla galerispina

description: <i>Flavoperla galerispina</i> sp. nov. (Figs. 1–5) <b>Adult habitus</b>. Biocellate. Male adult color yellow, and paler in alcohol. Head pale yellow with a Y-shaped yellow markings interrupted medially between ocelli, anterolaterally extending along M-line, bearing a small subtriangular patch forward of M-line; antennae brown, scape paler; palpi pale brown; head slightly wider than pronotum (Figs. 1a, 2a). Pronotum yellow, rectangular, with paler rugosities; corners obtuse. Wing membrane pale yellow, veins yellow; legs, abdominal segments and cerci yellow. <b>Male</b> (Figs. 1a, 2–3). Forewing length 7.7–8.9 mm. Hindwing 6.7–7.7 mm. Tergum 10 with quadrangular epiproct sclerite lying between, and caudal to paired sclerotized triangular spines (Figs. 2 b–2c); epiproctal sclerite divided by small membranous triangular area. Paraprocts curved forward, hook-shaped, pointed and tips dark brown. Hammer bell-shaped, basal half broad, tapering to a nipple-like brown pigmented apex in ventral aspect with sclerotized anterior extensions; apex swollen and curved upward in lateral view (Figs. 3a, 3 c–3d). Everted aedeagus (Figs. 2b, 2d, 3 a–3c) dorsally bearing a membranous oval unpigmented structure with a notch tip, surrounded by four swellings (Figs. 2b, 2d); venter quadrate, mostly membranous without pigmented apex, strongly constricted &amp;frac13; of the base bearing a cap-shaped patch of brown triangular spines (Figs. 3 a–3c). <b>Female</b> (Figs. 1a, 4 a–4d). Forewing length 9.6–10.0 mm, hindwing length 8.6–8.7 mm. Habitus generally similar to male except body color darker. Abdomens of collected females full of mature eggs. Subgenital plate broadly rounded, reaching beyond midpoint of sternum 10. Sternum 9 slightly sclerotized, deeply emarginate medially and distinctly flanged anteriorly. Sternum 10 poorly sclerotized. <b>Egg</b> (Figs. 4 e–4f, 5). Length 0.38–0.43 mm, width 0.26–0.31 mm (N=6). Outline oval shape with distinct opercular line, widest in subequatorial area towards opercular end. Anchor mushroom-shaped, with globular bodies evenly distributed and not grouped. Collar short but distinctly flanged, with heavy meshwork of large irregular shaped follicle cell impressions (FCIs) towards collar rim. Chorionic surface covered with shallow and distinct punctations throughout, FCIs recognizable only on collar end. Micropylar orifices sessile, much larger than punctations, set on subequatorial line. <b>Type material</b>. Holotype: male (HIST), CHINA: Guangxi Zhuang Autonomous Region, Guilin City, Multinational Autonomous County of Longsheng, at gate of Huaping National Nature Reserve, 25°37’37’’ N, 109°54’41” E, 734 m, 2019.VIII.31, light trap, Guoquan Wang, Raorao Mo, Liangxin Liu, Fengping Qin, Yingying Mo. Paratypes: 4 males and 1 female (HIST), same data and date as holotype; 2 females (HIST), same location as holotype, 2019.VIII.30, light trap. <b>Etymology</b>. The specific name refers to the cap-shaped ventral patch of brown triangular spines of aedeagus. Latin “galerus” means cap and “spina” means spine. <b>Distribution</b>. China (Guangxi Zhuang Autonomous Region). <b>Remarks</b>. The aedeagus of the male of the new species is unique among all known species of <i>Flavoperla,</i> and easily distinguishes it from congeners. The broadly rounded subgenital plate of the female of <i>F. galerispina</i> is similar to <i>F. basomarginata</i> Chen, 2019, a species recently described from Sichuan Province of southwestern China, and two Vietnamese species, <i>F. dao</i> and <i>F. hmong</i> described by Stark &amp; Sivec (2008). However, <i>F. galerispina</i> may be easily separated from these species by the head pattern and male structures. In addition, details of hammer of sternum 9 and triangular caudal spines of tergum 10 of the <i>F. galerispina</i> is most similar to that of <i>F. basomarginata</i>. However, the new species can be distinguished from <i>F. basomarginata</i> by the brownish Y-shaped head pattern, hook-shaped paraprocts and unique patch of spines on the base of aedeagus.
description: Published as part of <i>Mo, Raorao, Wang, Guoquan &amp; Li, Weihai, 2020, A new species of Flavoperla Chu, 1929 (Plecoptera: Perlidae) from Guangxi Zhuang Autonomous Region of southern China, pp. 565-572 in Zootaxa 4732 (4)</i> on pages 565-571, DOI: 10.11646/zootaxa.4732.4.5, http://zenodo.org/record/3667372
description: {"references": ["Chen, Z. T. (2019) On the identity of the genus Flavoperla (Plecoptera: Perlidae), with description of a new species in southwestern China. Zootaxa, 4613 (1), 127 - 134. https: // doi. org / 10.11646 / zootaxa. 4613.1.6", "Stark, B. P. &amp; Sivec, I. (2008) New Vietnamese species of the genus Flavoperla Chu (Plecoptera: Perlidae). Illiesia, 4 (5), 59 - 65."]}