Homonemobius amare 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 : 27-28

Homonemobius amare He & Ma , sp. n.

( Figs. 25–26)

Type material. Holotype. China: Male, Yunnan, Dali, Cangshan Mountain , alt. 2300 m, vi-15-1995, Zhi Liu coll. ( SNNU).

Description. Male. Body size small for the genus. Head small, slightly wider than the anterior of pronotum. Rostrum slightly narrower than antennal scape. Median ocellus smallest of the three, rounded. Eyes rather large. Postclypeus narrower than anteclypeus. Apical joint of maxillary palpi slightly 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; both anterior and posterior margins straight, the posterior wider than the anterior, middle of both lateral edges slightly concave. Tegmen short, extending to the base of 6th abdominal tergite; dorsal field armed with five longitudinal veins, lateral field bearing four Sc branches. Tympana absent. Hind tibia bearing four dorsal spurs outside and three inside; apical spurs three on both sides respectively.

Genitalia. In dorsal view, epiphallus extremely narrowed medially; lateral lobe acinaciform, long and large, inward curved. In ventral view, ectoparamere acinaciform, rather short, inward curved.

Female. Unknown.

Coloration. Body dark. The first Sc branch of tegmen light yellow.

Measurements (mm). Male. BL 7.44, HW 2.04, PL 1.67, TL 2.11, HFL 5.29.

Etymology. The name refers to our passion for entomology.

Remarks. This species is similar to Homonemobius brunneis He, 2010 in body coloration, but it is distinguished from each of Homonemobius in genitalia. Indeed, all species of the genus only possess similar venation and each of them bearing distinct genitalia. And we suspect that the genus was a polyphyletic group.

Genus Impetunemobius He & Ma , gen. n.

( Figs. 27–29 )

Type species: Impetunemobius brunneis sp. n., here designated.

Diagnosis. Body size medium for this subfamily, dark brown. Tegmen bearing an oblique vein and three chord veins. Dividing vein longitudinal and separated mirror as left and right 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 outside and three inside, the third of the inside spurs proximally expanded; apical spurs two inside and three outside. Genitalia ( Fig. 29 ): Epiphallic upper and lower margin concave medially. Lateral lobe rather long, apex blunt and slightly curved inward. Ectoparamere long and thin, pointed inward. Guiding rod triangular.

Etymology. The name refers to the powerful appearance of the hind femur.

Included species. Type species only.

Comparison. Impetunemobius is very similar to Homonemobius Chopard, 1935 and Pepoapua Jesus & Pereira, 2017 in male genitalia, but different in the characteristics of tegmen. It obviously differs from other genera of Nemobiinae in male genitalia.

Figures

FIGURE 27. I. brunneis sp. n. Habitus (alive) in field. A. Male. B. Female.

FIGURE 28. Habitus photographs of I. brunneis sp. n. A. Male. B. Female. Scale bar: 2 mm.

FIGURE 29. Male genitalia of I. brunneis sp. n. A. Dorsal view. B. Lateral view. C. Ventral view.