Apterolarnaca (Apterolarnaca) huanglianensis Bian & Lu, 2021

Zhang, Qianwen, Lu, Xiangyi & Bian, Xun, 2022, Contribution to the knowledge of Chinese Gryllacrididae (Orthoptera) IX: One new species of Apterolarnaca Gorochov, 2004 from Guangxi with description of female Apterolarnaca (Apterolarnaca) huanglianensis Bian & Lu, 2021, Zootaxa 5178 (4), pp. 391-396 : 392-393

Apterolarnaca (Apterolarnaca) huanglianensis Bian & Lu, 2021 RỀXOidzfiễ

Figures 1–2

Description. Female (new description). Fore coxae with 1 spine. Fore and middle femora unarmed on ventral surfaces, hind femora with 9 internal and 8 external spines on ventral surface. Fore and middle tibiae with 5 pairs of ventral spurs, including 1 pair of apical ones; hind tibiae with 5 pairs of dorsal spines, apices with 1 pair of dorsal spurs and 2 pairs of ventral spurs.

Second and third abdominal tergites each with two rows of stridulatory pegs ( Fig. 2D ). Subgenital plate slightly shorter than wide, the lateral margins obviously narrowing from basal to apical area, posterior margin nearly straight, the apico-lateral angles rounded ( Fig. 2G ). Ovipositor short and strongly curved upwards, with dorsal and ventral margins smooth, its apices obtuse ( Fig. 2E ); with a pair of digitate sclerites at base of ventral valvulae, which projecting outwards ( Fig. 2G ).

The coloration is same as the Bian et al. ’s (2021) description.

Material examined. 1 male and 1 female, Banggang, Menghai , Yunnan, August 25, 2019, coll. by Xun Bian. Measurements (mm). Female: BL 20.6, PL 4 . 0, HFL 11 . 4, OvL 6 .0.

Distribution. Yunnan (Lvchun, Menghai).

Discussion. The species is similar to Apterolarnaca (Bianigryllacris) bilobus (Guo & Shi, 2012) in ventral valvulae with a pair of digitate sclerites at base, but differs from the latter by: the posterior margin of female subgenital plate almost straight with smaller sclerites at base of ventral valvulae ( Fig. 2C ). While Apterolarnaca (Bianigryllacris) bilobus (Guo & Shi, 2012) has female subgenital plate with rounded posterior margin ( Bian et al., 2014: Fig. 1L ).

Figures

FIGURE 1. Apterolarnaca (Apterolarnaca) huanglianensis Bian & Lu, 2021. Male: A. head in frontal view; B–C. head and pronotum: B. dorsal view, C. lateral view; D. second and third abdominal tergites with stridulatory pegs in lateral view; E–G. apex of abdomen: E. apical view, F. lateral view, G. ventral view; H. left hind femur in external view.

FIGURE 2. Apterolarnaca (Apterolarnaca) huanglianensis Bian & Lu, 2021. Female: A. head in frontal view; B–C. head and pronotum: B. dorsal view, C. lateral view; D. second and third abdominal tergites with stridulatory pegs in lateral view; E–F. apex of abdomen: E. lateral view, F. lateral and ventral view; G. subgenital plate in ventral view; H. right hind femur in ventral and slightly lateral view.