Xiphidiopsis (Xiphidiopsis) minorincisus Han, Chang & Shi

Han, Li, Di, Juan-Xia, Chang, Yan-Lin & Shi, Fu-Ming, 2015, Three new species of the genus Xiphidiopsis Redtenbacher, 1891 (Orthoptera: Tettigoniidae: Meconematinae) in China, Zootaxa 4018 (4), pp. 553-562 : 554-555

1. Xiphidiopsis (Xiphidiopsis) minorincisus Han, Chang & Shi sp. nov.

Figure 1 , Map 1

Description. Male. Body medium for the tribe Meconematini . Fastigium verticis conical, projecting forwards, apex obtusely rounded, with a longitudinal shallow sulcus. Eyes globular, protruding outwards. Maxillary palpi long, length of apical segment as subapical one, apex slightly widened.

Pronotum slightly short, anterior margin comparatively straight, posterior margin obtusely rounded, humeral sinus comparatively shallow. Thoracic auditory spiracles peanut-shaped, exposed. Procoxa with 1 spine; protibia with 5 spines on inner margin and 6 spines on outer margin of ventral surface, spines long near the base, slightly short near the apex; tibial tympanal organs open on internal and external sides, oval. Mesotibia with 5 spines on inner margin and 6 spines on outer margin of ventral surface. Posttibia with 20–22 spines on inner margin and 24– 26 spines on outer margin of ventral surface, with two pairs of ventral apical spurs and one pair of dorsal apical spurs. Tegmina narrowly long, surpassing apices of postfemora, apices rounded; hind wings longer than tegmina.

Posterior margin of tenth abdominal tergite elongated backwards, forming a long middle posterior process, curving downwards, base thick, apical area depressed, apex obtusely rounded ( Fig. 1 C–D); left lateral margin near middle area of posterior process with an incision. Base of cercus stout, with a short process on inner margin of ventral surface, apex obtusely rounded; with a small acute process near middle area of inner margin; apical half slightly broadened, curved inwards, separated into two lobes, dorsal lobe short, apex conical; ventral lobe of left and right cercus with different structure, left cercus with apex lamellar, subapex with a small branch ( Fig.1 E); right cercus with apex depressed, separated into two branches in apex. Subgenital plate almost trapezoidal, basal area broad, apical area narrow, posterior margin slightly arc-shaped protruding backwards. Styli cylindrical, base stout, narrowing, apices obtusely rounded.

Coloration. Body light green. Eyes dark brown. Postfemoral genicular lobe with a black spot on inner and outer sides separately. Apices of spines on ventral surface of tibiae dark brown, spurs of posttibiae dark brown. Posterior margin of tegmina light brown, stridulatory area brown.

Female. Unknown.

Type material. Holotype: male, Mao'ershan, Xing'an, Guangxi, 23 August 2011, collected by Xun Bian; paratypes: 1♂, other data as holotype; 3♂, Mao'ershan, Xing'an, Guangxi, 20 August 2011, collected by Xun Bian; 1♂, Mao'ershan, Xing'an, Guangxi, 20 August 2011, collected by Xun Bian; 2♂, Mao'ershan, Xing'an, Guangxi, 7, 9 August 2006, collected by Fu-Ming Shi and Shao-Li Mao; 1♂; Libo, Guizhou, 21 August 2000, collected by Fu- Ming Shi; 1♂, Libo, Guizhou, 27 July 2003, collected by Fu-Ming Shi; 2♂, Libo, Guizhou, 29 July 2003, collected by Fu-Ming Shi; 1♂, Qianjiadong, Jiangyong, Hunan, 18 September 2004, collected by Jian-Hua Huang.

Measurements (mm). Body: ♂12.2–14.5; ♀9.1–11.0; pronotum: ♂4.2–4.5, ♀4.0–4.2; tegmina: ♂17.5–18.1, ♀19.5–19.8; postfemora: ♂10.2–10.5, ♀10.8–11.1; ovipositor: 9.5–9.8.

Discussion. The new species is allied to Xiphidiopsis (Xiphidiopsis) bituberculata Ebner, 1939 ( Fig. 4 ), but it differs from the latter in: posterior process of male tenth abdominal tergite asymmetric, with one incision on the left margin near middle area; dorsal lobe of cercus conical, apex of ventral lobe with branches.

Etymology. The name of the new species is derived from posterior process of male tenth abdominal tergite with a small incision on left lateral margin.

Distribution. China (Guangxi, Guizhou, Hunan).

Figures

FIGURE 1. Xiphidiopsis (Xiphidiopsis) minorincisus Han, Chang & Shi sp. nov., male: A – B. pronotum: A. dorsal view; B. lateral view; C – E. apex of abdomen: C. dorsal view; D. lateral view; E. apico-lateral view; F. subgenital plate in ventral view.

FIGURE 4. Xiphidiopsis (Xiphidiopsis) bituberculata Ebner, 1939: A – B. pronotum: A. dorsal view; B. lateral view; C – E, G. apex of abdomen: C. dorsal view; D, G. lateral view; E. ventral view; F, H. subgenital plate in ventral view; A – F. male; G – H. female.