Zvenella yunnana (Gorochov, 1985)

Zheng, Yanna, Xin, Zhixia, Xie, Lingde & Ma, Libin, 2021, - Revision-of-the-cricket-subfamily-Podoscirtinae-Saussure, - 1878 - (Orthoptera: - Gryllidae) - from-China, Zootaxa 4995 (3), pp. 401-424 : 407-408

Zvenella yunnana ­(Gorochov,­1985)

(Figs. 2B; 3B, E; 5A–G)

Madasumma yunnana Gorochov, 1985: 99 , 100

Zvenella yunnana, Gorochov, 1988: 13, 2002: 336 , 337; Ingrisch, 1997: 64; Yin & Liu, 1995: 109; Ma & Zhang, 2012: 60; Mal, Nagar & Ranjni, 2014: 84; Kim & Hong, 2014: 64

Zvenella aequalis Ma & Zhang, 2012: 63 , syn.­nov.

Examined­materials.­ 1 male. China: ­ Yunnan, Ruili, Mengxiu , Jun. 13, 2013, Ma, Libin coll. ( SNNU) ; 4 males. China: Yunnan, Jinghong , Jul. 11, 2018, Peng, Zhong coll. ( SNNU) ; 4 males. China: Yunnan, Mengla, Mengman, Nanping , May 20, 2013, Ma, Libin coll. ( SNNU) ; 3 males. China: Yunnan, Mengla, Menglun , May 29, 2013, Ma, Libin coll. ( SNNU) ; 1 male. China: Yunnan, Jinping, Mengla, Xinmeng , May 1, 2013, Ma, Libin coll. ( SNNU) ; 1 male. China: Yunnan, Cangyuan, Banlao , Jun. 4, 2013, Ma, Libin coll. ( SNNU) .

Measurements­ (mm).­ Male­ (n=14): BL 17.00±1.04; HL 5.43±0.64; HW 3.18±0.43; PL 2.86±0.24; PW 4.85±0.33; FWL ­ 14.50±0.02; HFL 7.13±0.43; HTL 11.12±0.08

Description.­Male:­ Vertex broad and flattened, slightly inclined. Frontal rostrum slightly wider than antennal scape; slightly convex in front view, inclined dorsally and ventrally, apically setose. Antennal scape shield-like. Ocelli equal in size, median ocellus transversely ovoid; lateral ocelli rounded. Eyes smaller, about 1/4 length of head. Postclypeus shaped as narrow band; anteclypeus shaped as broad shield. Labrum shaped as rhombus, lateral margins angle-like and the apical concave medially. End section of maxillary palpi longer than the third; end section of labial palpi depressed and widened, about two times longer than the second.

Pronotum broad and flattened, posterior margin slightly wider than the anterior, sides rounded, the anterior margin concave and the posterior convex. Basal margin of metanotal gland sinuate; lateral margin proximally convex, and interrupted here and disconnected to the posterior portion; distal margin convex and arc-like.

Tegmina about 2/3 length of body. Oblique veins five. Diagonal vein proximally bifurcated, one branch connected to proximal of chord vein, another one connected to proximally of CuA vein. Chord veins three, linking with mirror by two transverse veins. Mirror shield-like, longer than width; dividing vein straight. Apical field armed with regular reticulate veins. Hindwings longer than tegmina, uncovered portion about 1.5 times longer than hind femur.

Outer tympanum larger than the inner; the outer one oval-like and the inner shaped as elongate oval. Hind tibiae evenly equipped with spines and armed with spurs distally (numbered 5:5); inner apical spurs three (the dorsal one longest, the ventral one shortest and about 1/3 length of the longest, the middle one about 1/2 length of the longest) and the outer apical spurs two (equal in length) and about 1/2 length of the longest. Supra-anal plate shaped as trapezoid, the anterior and posterior margin concave; the anterior two times wider than the posterior margin; lateral margin concave medially and both sides densely pubescent.

Genitalia.­ Middle lobes of epiphallus long, rod-like and acute apically. Lateral lobes of epiphallus short, included angle between middle lobe and lateral lobe form a right angle. Epiphallus ventrally possessing two lateral projections, the anterior one short, rod-shaped (apically rounded apically, about 1/2 length of middle lobe of epiphallus) and caudal one sheet-like (ventrally concave and armed with dense and sharp denticles, and dorsal margin flat). Ectoparamere apically bifurcated with upper branch apically rounded (about 1/2 length of the lower) and lower branch apically acute. Guiding rod shovel-like, centrally furrowed, proximally widened with apex slightly acute.

Coloration.­ Body brown. Occiput light brown; ocelli yellowish; eyes and antennal scape yellowish brown; clypeus, labrum, maxillary palpi and labial palpi light brown. Pronotum dark brown.

Female unknown.

FIGURE­5.­ Genitalia of Z. yunnana . A. dorsal view; B. lateral view; C. ventral view; D. caudal view; E. inside of male genitalia, lateral view; F. guiding rod, ventral view; G. guiding rod, lateral view.

Remarks. Gorochov proposed this species in 1985 and originally placed it in Madasumma Walker, 1869 . Subsequently, he moved it to Zvenella ( Gorochov, 1988) and thought it should belong to the Yunnana Group (species group I in Orthoptera Species File ­ online) ( Gorochov, 2002). Ma and Zhang (2012) identified some Yunnan specimens as Z. aequalis , which is resemble to Z. yunnana . The authors argued that they were different in metanotal gland, ventral projections of ectoparamere, lateral lobes of epiphallus and characters of supra-anal plate. After examining about 14 specimens from Yunnan, we found these differences are intraspecific variation. Thus, we considered that Z. aequalis should be junior synonym of Z. yunnana .