Holochlora gaoligonga 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 : 437

Holochlora gaoligonga Wu & Liu sp. nov.

Chinese vernacular name: ḕṷīũŝ

( Figs. 3A–H , 6 )

Type Material. Holotype. ♂, China: Yunnan Province, Baoshan City, Bai’Hua’Ling Village ( Ħĭĸ), N 25.3042° E 98.8004°, 1575m, 6–8.X.2024, Chao Wu leg. ( IZCAS) . Paratypes. 3♂, same data ( IZCAS) .

Description.

Male.

Head. Ovoid, elongate, occiput smooth, dorsally round. Compound eyes large, rounded, anteriorly protruding. Antennae slender, long and flexible, longer than the 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 and straight. Fore tibia with inner tympanum conchate, significantly swollen, opening of the inner tympanum very narrow, slit ( Fig. 3D ); with outer tympanum large and droplet shaped, the medial sclerite completely black ( Fig. 3E ). Hind leg very long; hind femur enlarged at basal half, and gradually narrowed towards apex, slightly swollen near knee, ventral margin with 8–10 external spines; the end of femur without black area, external lobes bispinose, tip of the lobes with sharp spine. Hind tibia longer than the femur; dense small spines are present on both dorsal margins, with small spines on the ventral margin are relatively sparse. Wings. Tegmina and hind wings fully developed. tegmen opaque, very long, about 6 times longer than pronotum, narrow, tapering towards rounded apex; hind wing with apex distinctively projecting beyond tegmen ( Fig. 3F ). Stridulatory file on left tegmen stout, droplet shaped, with a prominent hump in the middle of the posterior margin, with about 35 equally spaced teeth, progressively smaller in size towards anal end ( Fig. 3G ). Hind wing wide, transparent except for tip, colorless, with greenish pale veins. Abdomen. Short, compressed. Tenth abdominal tergum short, the dorsal side is flat and not raised, cleft in basal half into two apical lobes: both lobes with interior spines on the ventral surface, in lateral view apical margin with a small spines. Cerci conical, hairy, with sharp spine at the tip, strongly curved inward. Subgenital plate extending far beyond tenth abdominal tergum, widest at base, gradually tapering, split in apical sixth into two subparallel thin sheet-like lobes, with short, conical styli. ( Fig. 3A–C ).

Coloration. The body generally monochromatic, primarily light green in color. Antennae yellowish-brown. All legs and spines yellowish green, except for the tympanum on the fore tibia is black. The tenth abdominal tergum and subgenital plate are also yellowish green. ( Fig. 3H )

Female. Unknown.

Measurements (length in mm). Body (head to wings end): 38.48–40.50; pronotum: 5.25–6.03; tegmen: 32.72– 34.45; fore femora: 6.28–7.01; hind femora: 24.62–25.89; hind tibiae: 27.64–29.28; stridulatory file: 1.56–1.88.

Etymology. The new species is named after the type locality Gaoligong Mt.

Discussion. Small-sized for the genus Holochlora . Entirely green, except tympanum area on the fore tibia black. The new species is similar to Holochlora nigrotympana Ingrisch, 1990 , this species is recorded from Thailand to southern China and is also a small sized species within the genus Holochlora . However, the tenth abdominal tergite of H. nigrotympana has a distinct hump on the dorsal side, while the tenth abdominal tergite of the new species has a flat dorsal side.

Distribution. China, Northwest Yunnan, Nujiang River Basin.

Figures

FIGURE 3. Holochlora gaoligonga sp. nov. A–C: ♂ abdominal apex in dorsal (A), lateral (B) and ventral (C) views; D: ♂ inner tympanum; E: ♂ outer tympanum; F: stridulatory file on the left tegmen in dorsal view; G: stridulatory file on the left tegmen in ventral view; H: habitus in lateral view. Scale bars: 1 mm (A–G), 5 mm (H).

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.