Elimaea ( Rhaebelimaea ) maculata, Wang & Shi, 2017

Elimaea ( Rhaebelimaea) maculata sp. nov.

( Figures 1 View FIGURE 1 D, 2C–D, 3O–R, 4D, 8A, 9F–H)

http://lsid.speciesfile.Org/urn:lsid: OrthOptera .speciesfile.Org:TaxOnName:498013

Type material. HOlOtype, male, Chachang, Suiyang, GuizhOu, 15 Aug. 2010, cOll. LehOng ZhaO. Paratype, 1 male, Emeishan , Sichuan, 31 Jul. 2011, cOll. Fuming Shi.

Description. Male. BOdy medium-sized. Fastigium verticis narrOw, slOping anteriOrly, shallOwly furrOwed On dOrsal surface; separated frOm fastigium frOntis by a gap. PrOnOtum with disc flattened in pOsteriOr area, lateral angles appreciably cOnstricted befOre the middle, then gradually expanding backwards, anteriOr margin cOncave, pOsteriOr margin rOunded, 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 rOunded; radius sectOr branching behind 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 A); 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 2.1 mm ( Fig. 2 View FIGURE 2 C–D); stridulatOry file 2.9 mm lOng, mOderately curved befOre the middle, with abOut 170 teeth, which Of basal twO thirds with 80 definite teeth, the Others faint and arranged densely ( Fig. 4 View FIGURE 4 D).

All femOra dOrsally smOOth, with a lOngitudinal grOOve On ventral surface; prOcOxae unarmed; prOfemOra with 12 ventrO-internal and 7 ventrO-external spines; prOtibiae with 5 dOrsO-external spines, 11–13 ventrO-internal and 8–9 ventrO-external spines; mesOfemOra with 14–16 ventrO-external spines; mesOtibiae with 11–13 dOrsO-internal and 5–7 dOrsO-external spines, 13 ventrO-internal and 15–18 ventrO-external spines; pOstfemOra with 12–13 ventrOexternal spines; pOsttibiae with numerOus spines On dOrsal and ventral surfaces.

Tenth abdOminal tergite with pOsteriOr margin excised in the middle. EpiprOct lOng tOngue-shaped, basal area brOad, apical half narrOw, apex narrOwly rOunded; cerci shOrt and stOut, strOngly curved inwards, with a flattened, sharp tip ( Fig. 3 View FIGURE 3 O, P); subgenital plate brOad in basal area, distal part narrOw, apical third nOtched widely, lateral lObes with apices rOunded and directing Outwards ( Fig. 3 View FIGURE 3 Q, R); genitalia with a pair Of stOut and shOrt lateral lObes, apical margins sclerOtized with denticles ( Fig. 9 View FIGURE 9 F–H).

Female. UnknOwn.

Color. BOdy green. Occiput with a lOngitudinal light brOwn stripe, which extending tO pOsteriOr margin Of prOnOtum alOng the midline; tegmina and femOra with numerOus brOwn dOts; stridulatOry area with a blOck Of brOwn spOt behind stridulatOry vein Of left tegmen, and the bases Of left and right tegmina with a dark brOwn mark; abdOmen with numerOus red dOts On lateral surfaces; cerci with apices brOwn.

Measurements (mm). Male. BOdy: 18.0–18.5; bOdy with wings: 50.0–50.4; prOnOtum: 4.6–4.7; tegmen length: 36.5–37.5; tegmen width: 8.5–8.7; prOfemur: 9.8–10.0; mesOfemur: 12.6–13.2; pOstfemur: 27.5–28.5.

Etymology. The name Of new species refers tO the stridulatOry area Of left tegmen with characteristic spOt.

Remarks. The new species resembles Elimaea ( Rhaebelimaea) schenklingi Karny, 1915 in male subgential plate with a deep apical nOtch, and lateral lObes with apices rOunded, but it differs frOm the latter in Rs branching behind the middle Of tegmina; male epiprOct with basal area brOad, apical half narrOw; stridulatOry area with a blOck Of brOwn spOt behind stridulatOry vein Of left tegmen, the bases Of left and right tegmina with a dark brOwn mark; genitalia with characteristic structure.

Distribution. China ( Sichuan, GuizhOu).