Conocephalus (Anisoptera) nanlingensis Li, Xin & Shi, 2019

Li, Yan-Qing, Zhang, Tao, Xin, Ya-Rui & Shi, Fu-Ming, 2019, The genus Conocephalus (Orthoptera: Tettigoniidae: Conocephalinae) from Guangdong and Nanling region, China with description of two new species, Zootaxa 4565 (4), pp. 590-600 : 597-599

10. Conocephalus (Anisoptera) nanlingensis Li, Xin & Shi sp. nov.

( Figs. 6 , 7 C–D)

Description. Male. Body medium-sized for genus. Fastigium verticis slightly narrow, apex blunt, width about 1/2 of scape; in frontal view, lateral margins paralleled, ventral margin connected with frontal verticis. Eyes subsphaeroidal, protruding forward and outward.

Anterior margin of pronotum straight, posterior margin rounded; lateral lobe nearly triangular, higher than deep, anterior margin arc-shaped, posterior margin nearly straight, oblique; the area corresponding to thoracic foramen semitransparent, small, slightly tumid; humeral sinus absent. Prosternum with a pair of spines.

Procoxae with 1 spine; profemora unarmed on ventral surface, apices of genicular lobes with 1 spine on inner margin and outer margin unarmed; protibiae with 6 spines on inner and outer margins of ventral surface separately; tibial tympana slit-like. Mesofemora unarmed on inner margin of ventral surface, outer margin of ventral surface with 0–2 spines; mesotibiae with 6 spines on inner and outer margins of ventral surface separately. Postfemora with 0–1 spine on inner margin and 6–8 spines on outer margin of ventral surface, apices of inner and outer genicular lobes with 2 spines separately, dorsal spine long than ventral spine; posttibiae with 22–30 spines on inner and outer margins of dorsal surface separately, with 2 pairs of ventral apical spurs, without dorsal apical spurs.

Tegmina not reaching apex of abdomen, apices slightly rounded. Stridulatory area of left tegmen trapezoid, Cu2 vein robust, cylindrical. Hind wings slightly longer than tegmina.

10 th abdominal tergite elongated, basal half broad, apical half narrowing, near apex split, lateral lobes rectangular, curved ventrad. Cerci long, roughly cylindrical, apical areas conical, apices blunt; with two inner teeth near the middle, and bases of two teeth far apart; the tooth near base short, slightly compressed, apex acute, directing inward; the other tooth near the middle conical, robust, apical half slightly compressed, hook-like, apex slightly acute, curved ventrad. Subgenital plate rectangular, the midline of basal half with a shallow longitudinal groove, posterior margin with a V-shaped notch. Styli cylindrical, apices rounded, inserted on apices of posterior margin of the lobes of subgenital plate.

Coloration. Body yellowish green (green when alive). Dorsal surface of head with a broad longitudinal reddish brown stripe. Disc of pronotum with a broad reddish brown stripe, outer margins with a light stripe separately, which blue when alive. Apices of postfemora, spines of posttibiae on dorsal surface brown. Middle area of dorsal surface of 10 th abdominal tergite blackish brown. Dorsal surface of apical half of cercus and two inner teeth brown. Costal and subcostal areas of tegmen light, the other areas brown.

Female. Appearance is similar to male. Posttibiae with 1 apical spur on outer margin of dorsal surface and 2 pairs of ventral apical spurs. Tegmina reaching end of abdomen. 10 th abdominal tergite short, the middle of posterior margin split, the lobes curved ventrad. Cerci long, conical. Ovipositor rather long, narrow, moderately curved dorsad, basal area slightly narrow; dorsal and ventral margins smooth, dorsal valvulae longer than ventral ones, apices of dorsal and ventral valvulae acute. Subgenital plate broad, posterior margin rounded. Ovipositor light brown.

Material examined. Holotype: ♂, Mangshan, Yizhang , Hunan, 23 August, 2018, coll. Yanqing Li and Yarui Xin. Paratype: 1♀, Xingzi, Lianzhou , Guangdong, 18 August, 2018, coll. Yanqing Li and Yarui Xin.

Measurements (mm). Body: ♂ 17.0, ♀ 18.5; pronotum: ♂ 3.8, ♀ 4.0; tegmina: ♂ 11.5, ♀ 13.0; postfemora: ♂ 11.5, ♀ 12.5; ovipositor: 14.0.

Distribution. China (Hunan, Guangdong).

Remarks. The new species is similar to Conocephalus (Anisoptera) guangdongensis Shi & Liang, 1997 and Conocephalus (Conocephalus) bidentatus Shi & Zheng, 1994 , but it is distinguished from the former in: the tooth near middle of male cercus obviously long, and bases of two teeth far apart, without overlapping arrangement; and from the latter in: male cerci long, roughly cylindrical, apical areas conical, apices blunt; bases of two teeth on cercus far apart, inserted near the middle; ovipositor slightly long and narrow, moderately curved dorsad.

Discussion. Males of the species have comparatively short tegmina and hind wings when alive, which do not reach apices of abdomen, but tegmina and hind wings are near the abdominal posterior margin in the dry specimens because abdomen shrinks a bit.

Etymology. The name of new species is derived from the type locality, Nanling.

Figures

FIGURE 6. Conocephalus (Anisoptera) nanlingensis Li, Xin & Shi sp. nov.: male: A–B. pronotum: A. dorsal view, B. lateral view; C–F. apex of abdomen: C. dorsal view, D. apical view, E. lateral view, F. ventral view; female: G. ovipositor in lateral view; H. subgenital plate in ventral view.

FIGURE 7. Habitus of Conocephalus pp. A–B. Conocephalus (Anisoptera) dorsalidentatus Li, Zhang & Shi sp. nov.; C–D. Conocephalus (Anisoptera) nanlingensis Li, Xin & Shi sp. nov.