Cryptoperla zhejiangensis Chen 2020, sp. nov.
Creators: name: Chen, Zhi-Teng
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Peltoperlidae
Cryptoperla
Cryptoperla zhejiangensis

description: <i>Cryptoperla zhejiangensis</i> sp. nov. Figs. 1–11. <b>Male.</b> Body (Fig. 1) length ca. 9 mm (n = 3). Body generally pale. Head (Fig. 2) generally pale. Biocellate; compound eyes dark and covered by short bristles.Antennae slender and dark brown. Pronotum subquadrate with obtuse corners, median area pale, lateral areas dark brown and covered with irregular pale pits. Macropterous (Figs. 1, 3); forewing length ca. 14 mm, hindwing length ca. 12 mm; wing membrane subhyaline, veins dark brown; wing apex with multiple veins. Femora pale, tibia and tarsi dark brown. Abdominal segments generally pale (Fig. 4). Tergum 10 slightly elevated at posterior half, posteromedially with a subtriangular process curved downwards (Fig. 5). Sternum 9 extended backwards, posterior margin arched, posterolaterally with two oblique impressions. Ventral lobe pale and elliptical, ca. 1.5X wide as its length, fringed with long bristles (Fig. 5D). Cerci mostly brown and covered by dense moderate bristles (Figs. 6, 7); basal cercal segment ca. 2.5X long as its width, apex unmodified; segments 2–9 each with a bunch of upcurved, moderate to long bristles along inner margin, longest bristles present on segments 5–8 and ca. 1.5X long as the cercal width. Aedeagus membranous (Fig. 8), with two large apical lobes and two rugose, tiny median lobes from dorsal view (Fig. 8A, B); from ventral view, with two large apical lobes, two basolateral low calluses and six tiny median lobes, inner margins of the two large apical lobes with a U-shaped patch of long bristles (Fig. 8C). <b>Female.</b> Body (Fig. 9) length ca. 12 mm (n = 1). Color pattern similar to males. Subgenital plate large and broad, rounded at posterior margin, reaching anterior half of sternum 10 (Fig. 10). <b>Type material.</b> Holotype: male, China: Zhejiang Province, Quzhou City, Housuntang (Fig. 11), 28.81113727°N, 118.97745093°E, 640 m, leg. Xiao-Han Ye (ICJUST). Paratypes: one male, same locality and date as holotype; one female, Zhejiang Province, Quzhou City, Mt. Yaowangshan, upstream of Housuntang, 28°52′42.63″N,118° 5 5′22.45″E, 250 m, leg. Xiao-Han Ye; one male, Zhejiang Province, Quzhou City, Dalu Village, leg. Xiao-Han Ye (ICJUST). <b>Etymology.</b> The specific epithet refers to the first new species of <i>Cryptoperla</i> known from Zhejiang Province. <b>Diganosis.</b> The new species apparently belongs to the <i>C. japonica</i> species group lacking a projecting apical spur or lobes on the basal cercal segments. The new species is easily distinguished when compared with all other members of the <i>C. japonica</i> group: <i>Cryptoperla zhejiangensis</i> differs from <i>C. japonica</i> (Okamoto, 1912) by the absence of long bristles on first basal cercal segment, having a different aedeagal shape, and by the rounded shape of female subgenital plate (see figs. 17, 23 in Uchida &amp; Isobe 1988); <i>C. zhejiangensis</i> differs from <i>C. klapaleki</i> Stark &amp; Sivec, 2007 by the different pattern on head and pronotum, presence of longest bristles on cercal segments 5–8 and different aedeagal shape (see figs. 9–11 in Stark &amp; Sivec 2007a); <i>C. zhejiangensis</i> differs from <i>C. kosai</i> Stark &amp; Sivec, 2007 by the different pattern on head and pronotum, presence of longest bristles on cercal segments 5–8, different aedeagal shape and by the rounded shape of female subgenital plate (see figs. 25–27 in Stark &amp; Sivec 2007b); <i>C. zhejiangensis</i> seems similar to <i>C. kumari</i> Stark, 1989 in the outline of aedeagus, but differs from the latter species by presence of more small median lobes on aedeagus, absence of long bristles on first basal cercal segment, and by the broader, rounded female subgenital plate (see figs. 40–44 in Stark 1989); <i>C. zhejiangensis</i> differs from <i>C. meo</i> Stark, 1989 by the presence of longest bristles on cercal segments 5–8 and by the broader, rounded female subgenital plate (see figs. 20–23 in Stark 1989); <i>C. zhejiangensis</i> differs from <i>C. naga</i> Stark, 1989 by the absence of long bristles on first basal cercal segment (see figs. 34, 37 in Stark 1989); <i>C. zhejiangensis</i> differs from <i>C. nangongshana</i> Huo &amp; Du, 2018 by the different pattern on head and pronotum, absence of long bristles on first basal cercal segment and different aedeagal shape (see figs. 7–10 in Huo &amp; Du 2018); <i>C. zhejiangensis</i> differs from <i>C. obtusa</i> (Wu, 1973) by male tergum 7 without a triangular mesal lobe overlapping most of tergum 8 (see fig. 5 in Wu 1973); <i>C. zhejiangensis</i> differs from <i>C. pentagonalis</i> Zwick &amp; Sivec, 1980 by the absence of long bristles on first basal cercal segment and different aedeagal shape (see fig. 22 in Zwick &amp; Sivec 1980); <i>C. zhejiangensis</i> differs from <i>C. simplex</i> Stark &amp; Sivec, 2007 by the different pattern on head and pronotum, presence of longest bristles on cercal segments 5–8, different aedeagal shape and by the broader, rounded female subgenital plate (see figs. 39–42 in Stark &amp; Sivec 2007b); <i>C. zhejiangensis</i> differs from <i>C. teana</i> Li &amp; Murányi, 2018 by the different pattern on head and pronotum, absence of long bristles on first basal cercal segment and different aedeagal shape (see figs. 1–17 in Li &amp; Murányi 2018). When compared with the three species without male descriptions, <i>C. meyi</i> Stark &amp; Sivec, 2007, <i>C. sinensis</i> (Wu &amp; Claassen, 1934) and <i>C. torva</i> Needham, 1909: the female of <i>C. zhejiangensis</i> differs from <i>C. meyi</i> by the different pattern on pronotum and the much broader female subgenital plate covering entire sternum 9 (see figs. 29–30 in Stark &amp; Sivec 2007b); <i>C. zhejiangensis</i> differs from <i>C. sinensis</i> by the presence of pale and dark brown pattern on pronotum and the much larger female subgenital plate covering entire sternum 9 (Wu &amp; Claassen 1934); <i>C. zhejiangensis</i> differs from <i>C. torva</i> by the shorter female subgenital plate not covering the entire abdomen and by wing venation with more RP and anal branches (Needham 1909).
description: Published as part of <i>Chen, Zhi-Teng, 2020, Systematic notes on Cryptoperla Needham, 1909 (Plecoptera: Peltoperlidae) from China, with description of a new species from Zhejiang Province, pp. 576-588 in Zootaxa 4810 (3)</i> on pages 579-580, DOI: 10.11646/zootaxa.4810.3.12, http://zenodo.org/record/3943852
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