Apterolarnaca Gorochov, 2004

Bian, Xun, Liu, Jing & Yang, Zizhong, 2021, Anotated Checklist of Chinese Ensifera: The Gryllacrididae, Zootaxa 4969 (2), pp. 201-254 : 205

1. Apterolarnaca Gorochov, 2004 (缺•原蟋•)

Apterolarnaca: Gorochov, 2004 . Entomological Review, 84(8): 914; Bian & Shi, 2015b. Oriental Insects: 2; Bian, Lu & Shi, 2016. Zootaxa, 4079(3): 358; Tan & Wahab, 2018. Zootaxa, 4462(4): 582; Ingrisch, 2018. Zootaxa, 4510(1): 117; Cadena- Castañeda, 2019. Zootaxa, 4605(1): 83.

Type species: Apterolarnaca ulla Gorochov, 2004

Diagnosis. Body medium. Wings absent. Ocelli absent. Male hind femora with numerous, strong, inner spines on ventral surface (basal spines larger than apical ones); while female hind femora less strongly specialized. Male hind tibiae distinctly curved, with strongly reduced spines on dorsal surface and undulate on ventral surface; female hind tibiae straight. Abdominal stridulatory area with 2 rows of oblique stridulatory teeth on second and third abdominal tergites each. Male ninth abdominal tergite entirely divided to two lateral lobes, each bearing an apical hook; tenth abdominal tergite ribbon like, interrupted in middle, with a distinctly broad, median area; subgenital plate broad, without styli, with a median projection on posterior margin, its lateral lobes slightly bifurcate apically and male genitalia entirely membranous. Female subgenital plate short and broad.

Species included. The genus consists of 5 species in total, three of which from Southwest China China and the other two from North Vietnam.