Capnogryllacris sequestris Liu, Lu & Bian, 2022

Liu, Jing, Lu, Xiangyi, Zhang, Qianwen, Wu, Xiangyi, Yang, Dongdong & Bian, Xun, 2022, Contribution to the knowledge of Chinese Gryllacrididae (Orthoptera) V: Further study on the Chinese Capnogryllacris and comment on the phylogenetic relationships of the Gryllacrididae, Zootaxa 5099 (1), pp. 1-45 : 18-19

Capnogryllacris sequestris Liu, Lu & Bian sp. nov.

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Figs. 20–21

Description. Body large. Face with scattered impressed dots. Fastigium verticis wider than scape, fastigium frontis separated from fastigium verticis by a fine suture ( Fig. 20A ). Ocelli distinct, median ocellus obviously larger than the lateral ocelli.

Anterior margin of pronotum projected in the middle, posterior margin arched; lateral lobes longer than deep, anterior angle widely rounded, posterior angle rounded ( Fig. 20B ).

Fore coxae with 1 spine. Fore and middle femora unarmed, hind femora with 19–20 internal and 10 external spines on ventral surface. Fore and middle tibiae with 4 pairs of spurs and 1 pair of apical spurs on ventral surfaces; hind tibiae with 6–7 pairs of spines and 1 pair of apical spurs on dorsal surface, ventral surface with 1 subapical and 2 apical spurs on each side.

Tegmina surpassing the ninth abdominal tergite and slightly reaching the apical third of hind tibiae ( Fig. 21A– B ). Tegmina ( Fig. 21C–D ): radius releases RS little before middle area of tegmen, both forked; media anterior free from base; cubitus anterior at base single branched, makes a curvature and receives a short connection branch from MA, then again divides into MP and CuA; cubitus posterior undivided, free throughout; with 4 anal veins, the last two with short common stem.

Second and third abdominal tergites without stridulatory pegs ( Fig. 20D ). Eighth abdominal tergite prolonged and curved downwards ( Fig. 20E ). Ninth abdominal tergite with deep furrow along the midline, on both sides with a globular swelling that has a short black spine on ventral margin, in situ crossing each other just behind base ( Fig. 20G ). Cerci slender, apices subacute. Subgenital plate wider than long, lateral margins convex, posterior margin angularly concave ( Fig. 20H ). Styli stout, inserted on the apico-lateral angles.

Female. Unknown.

Coloration. Body yellow brown. Genae, mandibles and ventral area of labrum black ( Fig. 20A ). Pronotum with a pair of black stripes which extending the anterior margin of lateral lobes ( Fig. 20B ). Tegmina semi-transparent yellowish, towards base darker. Spines of all tibiae black or slightly lighter.

Measurements (mm). Male: BL 36.0, PL 7.0, TL 31.0, HFL 19.0.

Material examined. Holotype: male, Jianfengling, Ledong , Hainan, September 16, 2021, coll. by Yue Zha.

Distribution. Hainan (Ledong).

Discussion. The new species differs from Capnogryllacris nigromarginata nigromarginata (Karny, 1928) in: genae black, pronotum with black stripes not connecting each other and margins brown ( Fig. 20B ); dorsal surface of abdomen without seta, the spines of male ninth abdominal tergite short.

Etymology. The new species name is from Latin word “ sequestr ” referring to the stripes of pronotum on connected.

Figures

FIGURE 20. Capnogryllacris sequestris sp. nov.. Male: A. head in frontal view; B–C. head and pronotum: B. dorsal view, C. lateral view; D. second and third abdominal tergites in lateral view; E–H. apex of abdomen: E. lateral view, F. dorsal view, G. apical view, H. ventral view.

FIGURE 21. Capnogryllacris sequestris sp. nov.. Male: A–B. habitus in lateral view; C–D. tegmina in dorsal view: C. left tegmen, D. right tegmen.