Xiphidiopsis (Xiphidiopsis) anisolobulus Han, Di & 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 : 557-558

3. Xiphidiopsis (Xiphidiopsis) anisolobulus Han, Di & Shi sp. nov.

Figure 3 , Map 1

Description. Male. Body small, medium for the tribe Meconematini . Fastigium verticis conical, projecting forwards, apex obtusely rounded, with a longitudinal shallow sulcus. Eyes oval, protruding. Maxillary palpi long, apical segment almost equal to subapical one, apex widened.

Pronotum slightly extending, anterior margin straight, posterior margin obtusely rounded, lateral lobes longer than deep, humeral sinus comparatively shallow. Thoracic auditory spiracles exposed. Procoxa with 1 spine; protibia with 4 spines on inner margin and 5 spines on outer margin of ventral surface, spines long near the base, slightly short near the apex; tibial tympanal organs opened on internal and external sides separately, oval. Mesotibia with 4 spines on inner margin and 5 spines on outer margin of ventral surface, spines shorter. Posttibia with 27–29 spines on inner margin and outer margin of ventral surface separately, 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.

Lateral sides of posterior margin of tenth abdominal tergite near ventral surface with one pair of small short processes; middle area of posterior margin with a depressed lamellar process, right side of ventral margin with a lamellar process; posterior process broadened backwards and outwards, apex separated into left and right lobes, curved ventrally, asymmetric ( Fig. 3 D). Cerci complicated and asymmetric ( Fig. 3 C, E – F), base wide, inner margin of near ventral surface with 1 irregular lobe, separated into inner and outer branches on 1/3 base, inner lobe of left cercus curved intro-dorsally, base wide, apical half curved backwards, narrow, slightly finger-like, apex obtusely rounded; outer lobe with apical half slightly wide, near apex spade-shaped; inner lobe of right cercus with basal half curved intro-dorsally, feebly broad, apex separated into 2 lobes, lamellar, apex obtusely rounded; outer lobe twisted, separated into dorsal and ventral branches, apex of dorsal branch broadened; apex of ventral branch slightly acute. Subgenital plate nearly trapezoidal, base slightly wide, lateral carinae on apical half distinct, apex narrow, posterior margin slightly straight; styli long, conical, apices obtusely rounded.

Coloration. Body light green. Eyes dark brown. Spines on ventral surface of tibiae and spurs of posttibia dark brown. Postfemoral genicular lobe with a black spot on inner and outer sides separately. Stridulatory area brown.

Female. Cerci conical, with base stout, apices acute. Ovipositor slender, curved upwards moderately. Subgenital plate with base wide, shallow concave, lateral margin extending dorsally; apical half slightly narrow, lateral margin nearly parallel, middle area of posterior margin with a deep notch, two lateral lobes with apices acute ( Fig. 3 H).

Type material. Holotype: male, Mengla, Yunnan, 6 August 2007, collected by Fu-Ming Shi & Shao-Li Mao; paratypes: 4♂, other data as holotype; 1♀, Mengla, Yunnan, 6 August 2007, collected by Guo Zheng; 1♀, Mengla, Yunnan, 8 August 2007, collected by Guo Zheng.

Measurements (mm). Body: ♂11.2–11.5; ♀11.5–11.8; pronotum: ♂6.1–6.5, ♀5.0–5.6; tegmina: ♂19.1–20.6, ♀21.2–22.5; postfemora: ♂10.2–10.7, ♀11.5–12.1; ovipositor: 11.8–12.2.

Discussion. The new species is allied to Xiphidiopsis (Xiphidiopsis) trusmadi Gorochov, 2008 , but it differs from the latter in: the left lobe of posterior process of male tenth abdominal tergite smaller than the right one, and both lobes slightly curved downwards; cerci complicated (shown as Fig. 3 C). Female subgenital plate nearly trapezoidal, with base slightly wide, apex distinctly concave.

Etymology. The name of the new species is derived from male posterior process of tenth abdominal tergite with two asymmetric lobes.

Distribution. China (Yunnan).

Figures

FIGURE 3. Xiphidiopsis (Xiphidiopsis) anisolobus Han, Di & Shi sp. nov.: A – B. pronotum: A. dorsal view; B. lateral view; C – F, I. apex of abdomen: C – D. dorsal view; E. ventral view; F, I. lateral view; G – H. subgenital plate in ventral view; A – G. male; H – I. female.