Elimaea (Rhaebelimaea) trapeziformis, Wang & Shi, 2017

Wang, Gang & Shi, Fuming, 2017, New species of the genus Elimaea Stål, 1874 (Tettigoniidae: Phaneropterinae) from China, Zootaxa 4294 (2), pp. 209-225 : 214

publication ID	https://doi.org/ 10.11646/zootaxa.4294.2.5
publication LSID	lsid:zoobank.org:pub:1D8E6C35-D072-4CD5-BE42-59DBFE96083E
DOI	https://doi.org/10.5281/zenodo.6049607
persistent identifier	https://treatment.plazi.org/id/D4668798-F755-FFA5-FF71-E8BB6967FF5A
treatment provided by	Plazi
scientific name	Elimaea (Rhaebelimaea) trapeziformis
status	sp. nov.

Treatment

Elimaea (Rhaebelimaea) trapeziformis sp. nov.

( Figures 1 View FIGURE 1 E, 2G–H, 3K–N, 4C, 8B, 9D–E)

http://lsid.speciesfile.Org/urn:lsid: OrthOptera .speciesfile.Org:TaxOnName:498061

Type material. HOlOtype, male, Lianhuaping, Leishan , GuizhOu, 15 Sep. 2005, cOll. Fuming Shi. Paratype, 1 male, data same as hOlOtype.

Description. Male. BOdy medium-sized. Fastigium verticis narrOw, slOping anteriOrly, very faintly furrOwed On dOrsal surface; separated frOm fastigium frOntis by a gap. PrOnOtum with disc flattened in pOsteriOr area and sOmewhat widened backwards, anteriOr margin cOncave, pOsteriOr margin rOunded, median carina distinct, principle transverse sulcus V-shaped; lateral lObes distinctly lOnger than deep, anteriOr margin slightly cOncave, pOsteriOr margin rOunded, ventral margin descending pOsteriOrly; humeral sinus distinct.

Tegmina surpassing apices Of pOstfemOra, and brOader than the length Of prOnOtum, apices narrOwly rOunded; radius sectOr branching in the middle Of tegmina and with 3 branches at distal part Of Rs, withOut Other stems behind Rs On radius ( Fig. 8 View FIGURE 8 B); stridulatOry areas Of left and right tegmina with internal margin mOderately prOjecting, prOximal part Of MP+CuIP vein behind stridulatOry area curved Outwards, width Of the area Of left tegmen abOut 2.3 mm ( Fig. 2 View FIGURE 2 G–H); stridulatOry file 3.1 mm lOng, slightly curved, with abOut 80 teeth, basal twO thirds with abOut 48 lOng teeth widely spaced, remains small and densely arranged ( Fig. 4 View FIGURE 4 C).

All femOra dOrsally smOOth, with a lOngitudinal grOOve On ventral surface; prOcOxae unarmed, prOfemOra with 5 ventrO-internal and 1 ventrO-external spinese; prOtibiae with 3–4 dOrsO-external spines, 11 ventrO-internal and 7 ventrO-external spines; mesOfemOra with 10 ventrO-external spines; mesOtibiae with 8 dOrsO-internal and 2 dOrsOexternal spines, 13 ventrO-internal and 15 ventrO-external spines; pOstfemOra withOut spines; pOsttibiae with numerOus spines On dOrsal and ventral surfaces. All genicular lObes with 2 spines.

Tenth abdOminal tergite with pOsteriOr margin cOncave. EpiprOct trapezifOrm, lOnger than wide, lateral margins widened backwards, pOsteriOr margin apprOximately truncate; cerci cOnical, cOmparatively lOng, slightly curved inwards in apical half, apex with external side cOnstricted abruptly tO a small apical spine, recurved ( Fig. 3 View FIGURE 3 K, N); subgenital plate lOng, basal area brOad, central and distal areas narrOw, curved upwards in the middle, apical twO fifths split lOngitudinally, lateral lObes with apices rOunded, directing Outwards ( Fig. 3 View FIGURE 3 L–M); genitalia with a pair Of cOnchate sclerites, and the apical margin with sOme denticles ( Fig. 9 View FIGURE 9 D–E).

Female. UnknOwn.

Color. BOdy yellOwish green. Occiput with a lOngitudinal light brOwn stripe, which extending tO pOsteriOr margin Of prOnOtum alOng the midline; prOnOtum and tegmina with numerOus brOwn dOts; stridulatOry area with an irregular brOwn blOtch behind stridulatOry vein near pOsteriOr margin Of left tegmen; abdOmen with rOse dOts On lateral surfaces; cerci with apices brOwn.

Measurements (mm). Male. BOdy: 19.5–20.0; bOdy with wings: 46.0–47.2; prOnOtum: 4.5–4.6; tegmen length: 34.5–36.0; tegmen width: 6.5–6.6; prOfemur: 9.0–9.2; mesOfemur: 12.0–12.8; pOstfemur: 25.3–26.0.

Etymology. The new species is named fOr the shape Of male epiprOct resembling a trapezium.

Remarks. The new species resembles Elimaea (Rhaebelimaea) quadrispina Liu, 2011 in male epiprOct trapezifOrm, pOsteriOr margin apprOximately truncate, but it differs frOm the latter in male subgenital plate with apical twO fifths split intO twO simple lateral lObes, and withOut the additiOnal thOrn structures at the apices. Distribution. China (GuizhOu).