Neocosmetura torcha Xin, Wang & Shi, 2020
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publication ID |
https://doi.org/ 10.11646/zootaxa.4819.2.10 |
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publication LSID |
lsid:zoobank.org:pub:82C305E4-9960-405C-9995-D555D5BD9909 |
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DOI |
https://doi.org/10.5281/zenodo.4438788 |
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persistent identifier |
https://treatment.plazi.org/id/03E2D968-FFD7-5A56-FF2B-FD34C7D80F69 |
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treatment provided by |
Plazi |
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scientific name |
Neocosmetura torcha Xin, Wang & Shi |
| status |
sp. nov. |
Neocosmetura torcha Xin, Wang & Shi View in CoL sp. nov. (AEDḚṄaeǿ)
( Figs. 2–3 View FIGURE 2 View FIGURE 3 )
Description. Male. Body small. Fastigium verticis conical, rounded apically and grooved dorsally. Eyes faintly globular, obviously protruding forwards. Apical segment of maxillary palpus nearly as long as subapical one, apex swollen, truncate.
Pronotum longer, reaching posterior margin of second abdominal tergite, anterior margin nearly straight while posterior margin rounded ( Fig. 2A View FIGURE 2 ); lateral lobe longer than high, posterior margin tapering, without humeral sinus ( Fig. 2B View FIGURE 2 ). Thoracic auditory spiracle small, exposed.
Tegmina short, reaching posterior margin of fourth abdominal tergite, apices obtusely rounded; hind wings absent ( Fig. 2 View FIGURE 2 A–B).
All femora unarmed on ventral surface, genicular lobes with apices obtusely rounded. Procoxa with 1 long spine. In addition to 1 pair of short apical spines, protibia with 4 spines respectively on both sides of ventral surface; tibial tympana open and ovoid on both sides. Mesotibia with 3 long spines on internal margin and 4 long spines on external margin of ventral surface. Posttibia with 27–33 spines on internal and external margins of dorsal surface separately, bearing 1 pair of apical spurs on dorsal and ventral surfaces separately.
Ninth abdominal tergite broad and short, nearly rectangular. Tenth abdominal tergite with base widened, the rest narrower, base downcurved, then bent backwards, the lateral margins of middle area lightly widened, tapering toward apex, apical area longitudinally split; near base on ventral surface with 1 pair of valviform processes ( Fig. 2 View FIGURE 2 C–D). Cercus with basal half cylindrical, inner margin of the middle extended lamellar, and its outer surface bulging, twisted, apical area bent and lamellar, apex rounded ( Fig. 2 View FIGURE 2 C–E, G). Genitalia membranous. Subgenital plate nearly rectangular, slightly longer than wide, posterior margin slightly arc-shaped; styli stubby, apices rounded, inserted on apices of lateral margins of subgenital plate ( Fig. 2E View FIGURE 2 ).
Female. The shape and length of pronotum and tegmina are similar to those of male. Ninth abdominal tergite wide, posterior margin slightly protruding, lateral margins extended ventrad and backwards significantly. Tenth abdominal tergite narrow and short, middle area of posterior margin split. Cercus conical, slightly pointed apically ( Fig. 2I View FIGURE 2 ). Ovipositor long with basal area stout, apical half slightly curved upwards, dorsal valvulae with apices acute, ventral ones with apices unciform ( Fig. 2 View FIGURE 2 J–K). Basal half of subgenital plate wide, and apical half narrowing, apex rounded ( Fig. 2H View FIGURE 2 ).
Coloration. Body yellowish brown, mixing light green patches. Eyes dark brown. Dorsum of head with 1 longitudinal dark brown stripe in the midline, which extending backwards to anterior half of pronotum, median area of metazona slightly pale. Area after eyes with 1 short longitudinal brown stripe separately. Tegmina with posterior margin brown, apices with some dark brown spots. Apices of femora and genicular lobes blackish brown, spines on legs blackish brown. Female tenth abdominal tergite light brown.
Material examined. Holotype: ♂, Jiuyishan, Ningyuan, Hunan, 7 August, 2019, coll. Tao Wang. Paratypes: 3♂ 4♀, Jiuyishan, Ningyuan, Hunan, 7 August, 2019, coll. Yarui Xin. Other specimens: 4♂ 2♀, Jiuyishan, Ningyuan, Hunan, 7 August, 2019, coll. Tao Wang.
Measurements(mm). Body: ♂ 9.6 – 9.8, ♀ 15.5 – 16.8; pronotum: ♂ 4.2–4.5, ♀ 4.3–4.6; tegmina: ♂ 2.4–2.6, ♀ 2.5–2.7; postfemora: ♂ 8.2–8.5, ♀ 8.3–8.7; ovipositor: 8.4–9.0.
Distribution. China (Hunan).
Etymology. Named with reference to male cercus morphology.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.