Conocephalus (Anisoptera) dorsalidentatus Li, Zhang & 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 : 596-597

9. Conocephalus (Anisoptera) dorsalidentatus Li, Zhang & Shi , sp. nov.

( Figs. 5 , 7 A–B)

Description. Male. Body medium for genus. Fastigium verticis narrow, apex blunt, width about 1/3 of scape, with a thin median longitudinal furrow; connected with or slightly apart from frontal verticis. Eyes ovoid, protruding forward and outward.

Anterior margin of pronotum slightly arc-shaped, posterior margin rounded; lateral lobe nearly triangular, higher than long, anterior margin with 1 small nick, posterior margin rounded; the area corresponding to thoracic foramen semitransparent, slightly plump; humeral sinus indistinct. Prosternum with a pair of spines.

Procoxae with 1 spine; profemora unarmed on ventral surface, apices of genicular lobes with 1–2 spines on inner margin and outer margin unarmed; protibiae with 6 spines on inner margin and 4–7 spines on outer margin of ventral surface; tibial tympana slit-like. Mesofemora unarmed on inner margin of ventral surface, outer margin of ventral surface with 4–5 spines; mesotibiae with 6–7 spines on inner margin and 6–8 spines on outer margin of ventral surface. Postfemora unarmed on inner margin and with 9–12 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 24–29 spines on inner margin and 16–23 spines on outer margin of dorsal surface, 1 pair of dorsal apical spurs and 2 pairs of ventral apical spurs.

Tegmina long, surpassing apices of postfemora, apices rounded. Stridulatory area of left tegmen trapezoid, Cu2 vein robust, fusiform. Hind wings longer than tegmina.

10 th abdominal tergite broad, posterior margin with a shallow triangular notch, the lateral lobes slightly curved ventrad, apices rounded. Cerci long, slightly incurved, 3/4 basal areas cylindrical, robust, 1/4 apical areas constricted, apices rounded; with two teeth near the middle, the tooth near base short, basal half slightly broad, gradually narrowing, apical half slightly compressed, apex acute, inserted on dorsal surface, directing dorsoinward; the other tooth near apex long, spine-shaped, inserted on inner surface, apex thin and acute, directing ventrad. Subgenital plate roughly rectangular, the middle of posterior margin with a shallow triangular notch. Styli slightly short, cylindrical, apices rounded, inserted on apices of the lobes of subgenital plate.

Coloration. Body green. Dorsal surface of head with a broad longitudinal brown stripe, the midline with a thin light stripe. Disc of pronotum with a broad longitudinal blackish brown stripe, outer margins with a light yellow stripe separately, and the midline with a thin light stripe. Dorsal surface of abdomen reddish brown, outer margins with a longitudinal light yellow stripe separately. Spines on ventral surface of mesofemora and postfemora, and spines on dorsal surface of posttibiae brown. Apical areas of two teeth on cercus brown. Costal area of tegmen light, Sc vein light yellow, the other areas light brown.

Female. Appearance is similar to male. 10 th abdominal tergite short, the middle of posterior margin with a nearly triangular concavity; epiproct tongue-shaped. Cerci long, conical. Ovipositor straight, basal area slightly narrow, middle area broad, gradually narrowing; dorsal and ventral margins smooth, dorsal valvulae longer than ventral ones, apices of dorsal valvulae blunt while ventral ones acute. Subgenital plate roughly triangular, basal area broad, narrowing, posterior margin straight. Ovipositor yellowish brown.

Material examined. Holotype: ♂, Meilinshan, Shenzhen , Guangdong, 15 July, 2018, coll. Tao Zhang. Paratypes: 4♂ 3♀, the other data same as holotype .

Measurements (mm). Body: ♂ 13.0–19.0, ♀ 16.0–18.0; pronotum: ♂ 4.0–4.3, ♀ 4.0–4.3; tegmina: ♂ 14.0–15.5, ♀ 15.5–16.0; postfemora: ♂ 9.0–10.5, ♀ 10.0–11.0; ovipositor: 12.0–12.5.

Distribution. China (Guangdong).

Remarks. The new species is similar to Conocephalus (Conocephalus) bidentatus Shi & Zheng, 1994 and Conocephalus (Conocephalus) differentus Shi & Liang, 1997 , but it differs in: tegmina elongate, surpassing apices of postfemora; anterior margin of lateral lobe of pronotum with 1 small incision; 1/4 apical area of male cercus constricted, the tooth near base short, inserted on dorsal surface, the tooth near apex elongate, spine-shaped, apex thin and acute, inserted on inner surface; basal area of ovipositor slightly narrow, middle area slightly broad.

Etymology. The name of new species is derived from the tooth near base of male cercus inserted on dorsal surface. Latin dorsal- referring to dorsal, and Latin dent- referring to tooth.

Figures

FIGURE 5. Conocephalus (Anisoptera) dorsalidentatus Li, Zhang & Shi, sp. nov.: male: A–B. pronotum: A. dorsal view, B. lateral view; C, F–G. apex of abdomen: C. dorsal view, F. lateral view, G. ventral view; D. fastigium verticis in dorsal view; E. left cercus in dorsal view; female: H. ovipositor in lateral view; I. 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.