Pteronemobius (Pteronemobius) choui He & Ma, 2021

He, Zhixin, Zhang, Tao & Ma, Libin, 2021, Crickets of subfamily Nemobiinae Saussure, 1877 (Orthoptera: Grylloidea; Trigonidiidae) from China with descriptions of new genera and new species, Zootaxa 5011 (1), pp. 1-70 : 43-44

Pteronemobius (Pteronemobius) choui He & Ma , sp. n.

( Figs. 45–46 )

Type material. Holotype. China: Male, Zhejiang, Tianmu Mountain National Natural Reserve , vii-21-1963, Yao Zhou coll. ( NWAFU).

Description. Male. Body size medium. Head round, slightly wider than pronotum. Rostrum approximately equal to antennal scape in width. Ocelli oval-like, median ocellus smallest of the three. Postclypeus transverse wide and its middle portion convex, anteclypeus concave medially and half-round. Apical joint of maxillary palpi longer than the third, depressed and widened, with rounded apex; apical joint of labial palpi rod-like, longer than remainder sections, depressed and widened. Pronotum transverse wide, bearing bristles; anterior and posterior margin straight, posterior margin wider than the anterior, middle groove distinctly, middle of both lateral edges slightly concave. Tegmen reaching 6th segment of abdomen, bearing an oblique vein and three chord veins, the third one and diagonal vein converge proximally. Dividing vein longitudinal and separating mirror as left and right cells. Apical region degraded, lateral region bearing two Sc branches. Fore tibia only possessing external tympanum, elongate oval-like. Hind tibia bearing four dorsal spurs on two sides respectively, of the inside spurs, first one stubby and far away from others, and the basal of fourth one expanded; apical spurs three inside and outside respectively.

Genitalia. In dorsal view, epiphallic upper and lower margin concave medially; lateral lobe somewhat widened at basal part and longer than ectoparamere, curved inward and arc-shaped, distal portion somewhat acute. In ventral view, apical endoparamere funnel-shaped; ectoparamere short and truncated; the basal of guiding rod shaped as triangular.

Female. Unknown.

Coloration. Body reddish brown. Head brown. Pronotum brown, a small portion of posterior margin reddish brown. Legs reddish brown. Tegmen reddish brown. Abdomen dark brown.

Measurements (mm). Male. BL 6.86, HW 1.78, PL 1.29, TL 3.29, HFL 3.77.

Etymology. The name derived from family name of Yao Zhou in his honor.

Remarks. This species is slightly similar to P. (P.) heydenii concolour in male genitalia, but different in length and shape of ectoparamere. Its coloration of body is similar to P. (P.) yezoensis , but different in characteristic of male genitalia.

Figures

FIGURE 45. P. (P.) choui, sp. n. Habitus photograph of male. Scale bar: 2 mm.

FIGURE 46. Male genitalia of P. (P.) choui, sp. n. A. Dorsal view. B. Lateral view. C. Ventral view.