Nemobiinae Saussure, 1874

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 : 7-8

Subfamily Nemobiinae Saussure, 1874

Keys to the most genera of Nemobiinae from China (based on adult males)

1. Wingless; tympanum absent............................................................................. 2

- Winged, venation similar in both genders.......................................... Homonemobius Chopard, 1935

- Winged, venation different in male and female.............................................................. 4

2. Legs short, always found in leaf litter............................................. Qionemobius Shen & He, 2020

- Legs long, always found in coastline habitats............................................................... 3

3. Genitalia rather short, ectoparamere acute apically................................... Marinemobius Gorochov, 1985

- Genitalia rather long, ectoparamere blunt apically................................ Parapteronemobius Furukawa, 1970

4. Hind tibia bearing five apical spurs....................................................................... 5

- Hind tibia bearing six apical spurs........................................................................ 6

5. Genitalia longish, two sides extended downward and inward, apical part membranous and expanded................................................................................................ Speonemobius Chopard, 1924

- Genitalia trapezoidal, two sides narrowed apically, apical part sclerotized and pointed inwards.................................................................................................. Claranemobius He & Ma , gen. n.

6. Hind tibia bearing four external and internal spurs respectively................................................. 7

- Hind tibia bearing three external and three or four internal spurs................................................ 9

7. Body multicolor, hind femur ornamented with three white spots....................... Giganemobius Shen & He, 2020

- Body concolor....................................................................................... 8

8. Ectoparamere rather thick, somewhat curved inward................................. Pteronemobius Jacobson, 1904

- Ectoparamere rather thin, transversely straight................................... Impetunemobius He & Ma , gen. n.

9. Hind femur bearing dark stripes..................................................... Dianemobius Vickery, 1973

- Hind femur concolorous............................................................................... 10

10. Tegmen not reaching abdominal apex.................................................................... 11

- Tegmen reaching abdominal apex....................................................................... 12

11. Epiphallus rather widened...................................................... Stenonemobius Gorochov, 1981

- Epiphallus rather narrowed................................................... Erexitonemobius He & Ma , gen. n.

12. Lateral lobe of epiphallus obvious................................................ Polionemobius Gorochov, 1983

- Lateral lobe of epiphallus covered by ectoparamere, unconspicuous.................... Fibunemobius He & Ma , gen. n.

Genus Claranemobius He & Ma , gen. n.

( Figs. 2–3 )

Type species: Claranemobius yaoquensis sp. n., here designated.

Diagnosis. Body size small, dark brown. Tegmen light yellowish brown, bearing one oblique vein and three chord veins. Apical region degraded, lateral region bearing two Sc branches. Fore tibia only possessing external tympanum, elongate oval-like. Hind tibia bearing three dorsal spurs and two apical spurs on both sides respectively. Male genitalia ( Fig. 3 ): ectoparamere widened and large, shaped as crab pincer and inward pointed; lateral lobe of epiphallus sheet-like, distal part rather acute and pointed inward.

Etymology. The name refers to its tegmen smooth and shining.

Included species. Type species only.

Comparison. Claranemobius is similar to Polionemobius and Pteronemobius in body shape, coloration, but is different in quantity of spurs on hind tibia and male genitalia. It also differs from other genera of Nemobiinae in male genitalia.

Figures

FIGURE 2. Habitus photographs of C. yaoquensis sp. n. A. Male. B. Female. Scale bar: 2 mm.

FIGURE 3. Male genitalia of C. yaoquensis sp. n. A. Dorsal view. B. Lateral view. C. Ventral view.