Pteronemobius (Pteronemobius) truncates Zhang, Wang & Liu, 2020

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 : 56

Pteronemobius (Pteronemobius) truncates Zhang, Wang & Liu, 2020

( Figs. 61–63 )

Pteronemobius truncates Zhang, Wang & Liu, 2020: 279

Materials examined. China: 3 males & 3 females, Yunnan, Gongshan , vi-14-2019, Libin Ma coll. ( SNNU) .

Description. Male. Body size small. Head round, slightly wider than the anterior of pronotum. Frontal rostrum not obvious, slightly wider than antennal scape. Ocelli round, median ocellus smallest, lateral ocelli oval-like. Postclypeus transverse wide, anteclypeus narrowed. 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 of both lateral edges slightly concave. Tegmen bearing an oblique vein and three chord veins, the third one and diagonal vein converge proximally. Mirror be separated as front and hind cells. Apical region degraded, lateral region bearing four Sc branches. Fore tibia only possessing external tympanum, elongate oval-like. Hind tibia bearing four dorsal spurs on two sides respectively, of the inside, first spur stubby and far away from others, the basal of fourth expanded; apical spurs three inside and outside respectively.

Genitalia. Epiphallic upper and lower margin concave medially; lateral lobe rod-like, slightly curved inward. Ectoparamere rod-like, straight and longer than epiphallic lateral lobe.

Female. Similar to male but forewing short. Ovipositor shorter than cercus and blade shape.

Coloration. Body colored dark brown. Occiput ornamented with four pale stripes. Pronotum colored yellowish brown, lateral edges colored dark brown. Hind femur bearing two dark spots.

Measurements (mm). Male (n=3). BL 5.76±0.79, HW 1.26±0.19, PL 1.43±0.14, TL 3.02±0.42, HFL 4.16±0.63. Female (n=3). BL 6.24±0.87, HW 1.31±0.23, PL 1.42±0.19, TL 2.68±0.33, HFL 3.64±0.66, OL 2.37±0.50.

Figures

FIGURE 61. P. (P.) truncates. Habitus of male (alive) in field.

FIGURE 62. Habitus photographs of P. (P.) truncates. A. Male. B. Female. Scale bar: 2 mm.

FIGURE 63. Male genitalia of P. (P.) truncates. A. Dorsal view. B. Lateral view. C. Ventral view.