Holochlora qinlangdanga Wu & Liu, 2025

Wu, Chao & Liu, Chun-Xiang, 2025, The genus Holochlora Stål (Orthoptera, Tettigoniidae) in Gaoligong Mountains, China, Zootaxa 5716 (3), pp. 432-442 : 433-435

Holochlora qinlangdanga Wu & Liu sp. nov.

Chinese vernacular name: ȗDzṡũŝ

( Figs. 1A–M , 5A–B , 6 )

Type Material. Holotype. ♂, China: Yunnan Province, Dulongjiang Township ( üżä乡), Maku Village ( Ḷṽ "), Qin’Lang’Dang ( ȗDzṡ), N 27.6887° E 98.2775°, 1248m, 2.IX.2023, Chao Wu leg. ( IZCAS) . Paratypes. 5♂, same locality as holotype, 2–9.IX.2023 Chao Wu & Chun-Xiang Liu leg. ( IZCAS) . 2♂, same locality as holotype, 2–7.X.2024 Chao Wu leg. ( BFU) . 105♂, same locality as holotype, 2–9.X.2024 Chao Wu, Hai-Dong Bian & Chun-Xiang Liu leg. ( IZCAS) . 1♀, same locality as holotype, 5.X.2024, Chao Wu leg. ( IZCAS) . 1♀, same locality as holotype, 3.X.2024, Chun-Xiang Liu leg. ( IZCAS) .

Description. Male.

Head. Ovoid, elongate; occiput smooth, dorsally round. Compound eyes large, rounded, anteriorly protruding. Antennae slender, long, flexible, longer than body. Pronotum. Pronotum gradually tilting and widened backwards, with anterior margin straight and posterior margin faintly convex; lateral lobes deeper than long, anterior margin straight, posterior margin slightly arched, ventral margin short and slightly curved. Legs. Each leg slender, straight. Fore tibia with inner tympanum conchate, significantly swollen, opening of the inner tympanum very narrow, slit ( Fig. 1G ); with outer tympanum large, droplet shaped, the medial sclerite completely black ( Fig. 1H ). Hind leg very long. Hind femur enlarged at basal half, and gradually narrowed towards apex, slightly swollen near knee; ventral margin with 5–6 external spines, about 3 spines on apical half clearly larger; the knee without black area, external lobes bispinose, tip of the lobes with sharp spine ( Fig. 1I ). Hind tibia longer than femur; dense small spines present on both dorsal margins, and small spines on ventral margins relatively sparse. Wings. Tegmina and hind wings fully developed. Leaf-like tegmen opaque, very long, about 6.7 times longer than pronotum, slightly narrow, tapering towards rounded apex; hind wing with apex distinctively projecting beyond tegmen. Stridulatory file on left tegmen stout, droplet shaped, and slightly narrower at anal end ( Fig. 1K ); about 3 mm long, with about 25 equally-spaced teeth, gradually smaller in size towards anal end ( Fig. 1J ). Hind wing wide, transparent except for tip, colorless, with greenish pale veins. Abdomen. Short, compressed. Tenth abdominal tergite long, thick, much longer than wide, deeply split into two bulbous lobes in dorsal view; posterior margin broadly rounded, with a wide, circular gap in middle; significantly curved in lateral view. Cercus hairy, strongly flattened, short; a spine at tip, sharp, strongly curved inward. Subgenital plate elongate, basally broad slightly gradually narrowing towards end, deeply divided at proximal third; apical lobes narrow, roundly emarginated, with short, conical styli. ( Figs. 1A–C ).

Coloration. Generally fresh green when alive, lustrous. Compound eyes bluish-green. Antennae yellowish brown, except for green base. Costal vein on tegmen base light yellow, with indistinct black anterior edge ( Fig. 5A ). Hind wings hyaline, with green exposed part. Tympanum on fore tibia black; large spines on ventral margin of hind femora brown, with black spots at base; each tibia having a small black area at base. Tenth abdominal tergum and subgenital plate yellowish-brown ( Fig. 1M ), with a black spot on each side of the base of subgenital plate; cerci yellow, with a black tip.

Female. Generally similar to male, but body comparatively large-sized and robust. Subgenital plate short, nearly pentagonal shape, longer than wide, with a small, elongated extension on each side; apex of subgenital plate with small V-shaped notch. Valvifer 1 large, oviform, longer than subgenital plate. Ovipositor long, curved upwards; valvulae 3 with a sharp apex, and about 25 large teeth on dorsal margin; valvulae 1 with about 15 small teeth on apex of ventral margin, gradually lengthening distad ( Fig. 1D–F ). Body color similar to male, ovipositor yellowish-brown, with black tip.

Measurements (length in mm). Body (head to wings end): ♂ 52.87–54.15, ♀ 77.02–79.50; pronotum: ♂ 7.55–8.02, ♀ 8.67–8.98; tegmen: ♂ 50.95–52.23, ♀ 61.78–62.34; fore femora: ♂ 7.79–8.34, ♀ 10.60–10.92; hind femora: ♂ 30.36–31.85, ♀ 37.82–38.93; hind tibiae: ♂ 35.92–37.03, ♀ 42.46–43.30; stridulatory file: ♂ 2.58–2.61; ovipositor: ♀ 12.82–19.21.

Biology. A significant number of male individuals were attracted to the light trap, but there were only two females. During nocturnal observations, adults were noted to be actively present on the upper surfaces of leaves on tall trees. Many eggs were dissected from female specimens, and the mature egg shells were hard, purple brown, flat, and narrowed at both ends ( Fig. 1L ).

Discussion. Body large-size and robust for the genus. The new species is generally similar to Holochlora fruhstorferi Carl, 1914 (from Than Moi, Tonkin, i.e. north Vietnam), but male tenth abdominal tergum of and stridulatory file under male left tegmen is distinctly different; in addition, the new species has not a black area at the tip of each femur.

Etymology. The new species is named after the type locality Qin’Lang’Dang, Yunnan Province.

Distribution. China: Northwest Yunnan, Dulong River Basin.

Figures

FIGURE 1. Holochlora qinlangdanga sp. nov. A–C: ♂ abdominal apex in dorsal (A), lateral (B) and ventral (C) views; D–F: ♀ abdominal apex in dorsal (D), lateral (E) and ventral (F) views; G: ♂ inner tympanum; H: ♂ outer tympanum; I: hind femur in external view; J: stridulatory file on the left tegmen in ventral view; K: stridulatory file on the left tegmen in dorsal view; L: eggs; M: habitus in lateral view. Scale bars: 1 mm (A–L), 5 mm (M).

FIGURE 5. Living adult and habitat of Holochlora. A: adult male of H. qinlangdanga sp. nov.; B: habitat of H. qinlangdanga sp. nov. in Dulongjiang (Yunnan), 1250m.

FIGURE 6. Distribution map of the genus Holochlora in Gaoligong Mountains. ★: H. qinlangdanga sp. nov.; ◆: H. fugonga sp. nov.; ▲: H. gaoligonga sp. nov.; ☆: H. nigrospinulosa.