Woznessenskia dentata, Lv & Su & Shi, 2025

Woznessenskia dentata sp. nov.

Figs 2 View Figure 2 , 10 C, D Chinese name 多齿维蟋螽 View Figure 10

Type material.

Holotype: CHINA • ♂; “ Yunnan, Jinghong, Jinuoshan [云南景洪基诺山]; 9 Jun 2023; Jie Su leg.; HBU ”.

Diagnosis.

Male. This new species resembles W. truncatoprocera sp. nov., but it differs from the latter in: genae under eyes with a brown longitudinal stripe separately (Fig. 2 A View Figure 2 ); apices of posterior processes of male tenth abdominal tergite nearly rounded, bearing 8–10 fine teeth on apical margins and inner margins near apices (Fig. 2 G – I View Figure 2 ).

It is different from W. incurva Shi, Zhu & Wang, 2022 by: genae under eyes with a brown longitudinal stripe separately (Fig. 2 A View Figure 2 ); apices of posterior processes of male tenth abdominal tergite distinctly incurved and slightly curved dorsally, bearing more fine teeth on apical margins and inner margins near apices; cercus longer (Fig. 2 G – I View Figure 2 ); pronotum with black stripe along entire margin, remaining portion concolorous with body (Fig. 2 C View Figure 2 ). Female. Unknown.

Description

(Based on holotype). Male. Body large.

Head. Face slightly long, narrow oval; fastigium verticis slightly broader than antennal scape. Eyes ovoid, slightly protruding forward and outward; ocelli indistinct, oval and small (Fig. 2 A, B View Figure 2 ).

Thorax. Pronotum broad, anterior margin slightly protruding forward while posterior margin straight (Fig. 2 B, C View Figure 2 ). Lateral areas of second and third abdominal tergites each with 2 rows of stridulatory pegs.

Tegmina and wings. Wings elongate, surpassing apex of stretched hind tibia. Tegmen: R releases Rs near the middle, both forked near apical area; MA releases MP near the third base; CuA releases CuA 1 and CuA 2 near the third base; MP and CuA 1 shortly fuse near the middle; CuP unbranched, free throughout; with 4 anal veins. Hind wing slightly longer than tegmen (Fig. 10 C, D View Figure 10 ).

Legs. Fore coxa with 1 spine at anterior margin. Fore and middle femora unarmed on ventral surfaces; fore and middle tibiae each with 4 pairs of movable long spines and 1 pair of short apical spurs on ventral surfaces, middle tibia with 1 inner apical spur on dorsal surface. Hind femur with 11–12 inner spines and 10–11 outer spines on ventral surface; hind tibia with 6–7 spines on inner and outer margins on dorsal surface, respectively; while apical area with 1 pair of dorsal apical spurs and 2 pairs of ventral apical spurs.

Abdomen. Ninth abdominal tergite moderately protruding posteriorly, with a pair of sclerotised and S-shaped processes (Fig. 2 D, E View Figure 2 ). Tenth abdominal tergite with a pair of long posterior processes, their bases cylindrical and apices sclerotised, apical areas distinctly incurved and slightly curved dorsally, depressed, apices nearly rounded, bearing 8–10 fine teeth on apical margins and inner margins near apices (Fig. 2 D, G – I View Figure 2 ). Cercus long conical, slightly incurved, apex slightly acute (Fig. 2 D, G View Figure 2 ). Subgenital plate short and broad with basal margin nearly straight, posterior margin slightly concave. Styli cylindrical, apices rounded, inserted on lateral margins of subapical area of subgenital plate (Fig. 2 F View Figure 2 ).

Female. Unknown.

Colouration. Body yellowish-brown. Fastigium verticis and occiput black, inner margin of antennal socket with the edge black, antenna black; genae under eyes with a brown longitudinal stripe separately. Eyes brown. Pronotum with black stripe along entire margin. Tegmina and hind wings transparent, veins dark brown. Spines and spurs on fore and middle tibiae brown; apices of spines and spurs on hind femur and hind tibia brown. Half apical area of male abdomen with tergites black, apices of processes of ninth abdominal tergite brown, processes of tenth abdominal tergite with apical areas brown.

Measurements

(mm). Body: ♂ 24.4; pronotum: ♂ 7.3; tegmen: ♂ 35.5; hind femur: ♂ 17.5.

Etymology.

The name of the new species derives from the Latin dentat - (dentatus), referring to the morphology of the posterior processes on male tenth abdominal tergite.

Distribution.

China ( Yunnan, known only from type locality).

Discussion.

This new species and W. truncatoprocera sp. nov. share the same type locality, both of which are represented by only a single male specimen. The two new species are similar in appearance, but posterior processes of male tenth abdominal tergite are distinctly different.