Tamdaora spina Cui & Bian, 2025, sp. nov.
Creators: name: Cui, Zhenzhen
name: Bian, Xun
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Orthoptera
Tettigoniidae
Tamdaora
Tamdaora spina

description: Tamdaora spina sp. nov.
刺ṱ三îŝ
Figure 1
Description. Male. Body large. Head. Fastigium verticis conical, projecting forward, dorsal surface with median furrow (Fig. 1A). Eyes nearly globular, protruding outward. Apical segment of maxillary palp longer than subapical one, apex inflated (Fig.1B). Thorax. Pronotum short, anterior margin faintly projecting, posterior margin narrowly rounded, with posterior transverse sulcus (Fig. 1A); lateral lobes longer than high, narrowing to backward, anterior angle arched, posterior angle obtusely rounded, posterior margin with indistinct humeral sinus (Fig. 1B). Tegmina and wings. Tegmina far surpassing the apex of postfemur; hind wings longer than tegmina. Legs. Procoxae with 1 small spine. All femora unarmed on ventral surfaces; apices of genicular lobes of postfemora obtuse. Protibiae ventrally with 4–5 internal and 4 external spines; tympana open on both sides, oblong. Mesotibiae with 5 internal and 4 external spines on ventral surface. Posttibiae with 22–24 internal and 25–27 external spines on dorsal surface, ventrally with 3–5 internal and 4–6 external spines, apices with 1 pair of dorsal spurs and 2 pairs of ventral spurs. Abdomen. Posterior margin of tenth abdominal tergite prolonged backwards, apical margin widely rounded (Fig. 1C). Cercus gradually tapering, apical half faintly depressed, slightly curved inwards and upwards, tip obtuse (Fig. 1D, H); middle area with 1 internal spine on ventral margin, its tip acute (Fig. 1C), following with 1 indistinct process on internal margin (Fig. 1C). Epiproct with 1 ovoid median process directed downwards, both margins of the median process tapering with indistinct teeth (Fig. 1G); with 1 pair of large lateral lobes, which bifurcated (Fig. 1F): the upper lobe prolonged backwards with converging and strongly incurved apical area, tip acute (Fig. 1D), the lower lobe wide and directing downward with obtuse tip (Fig. 1F). Subgenital plate longer than wide, with lateral margins in about basal half convex, afterwards narrowing, faintly concave; apical area bilobate with a small median excision (Fig. 1K); ventral surface with triangular membranous area from base (Fig. 1K). Styli slender, apices obtuse, located on both sides of apical area of subgenital plate (Fig. 1K).
Female. Unknown.
Coloration. Body yellowish green when alive. Eyes black. Internal margins of scape and pedicel, and flagellum brownish. Fastigium verticis black. Dorsal surface of head with longitudinal yellowish-brown stripe, extending to the posterior margin of pronotum. Posttibae yellowish brown.
Material examined. Holotype: male, Dulongjiang, Gongshan, Yunnan, August 22, 2024, coll. by Ting Luo and Yanting Qin.
Measurements (mm). Body: ♂ 14.5; pronotum: ♂ 5.2; tegmen: ♂ 23.7; postfemur: ♂ 13.3.
Distribution. Yunnan (Gongshan).
Discussion. This species differs from Tamdaora magnifica Gorochov, 1998 (Fig. 2) by: male cercus with 1 large internal spine before middle area (Fig. 1D); male epiproct with 1 ovoid median process, which tips tapering and directing downward (Fig. 1G), and with 1 pair of large lateral lobes which bifurcated (Fig. 1F), the upper lobe projecting backward with acute tip (Fig. 1D) and the lower lobe directing downward with obtuse tip (Fig. 1F); posterior margin of male subgenital plate excavated in middle (Fig. 1K).
Etymology. The new species name refers to male cerci with one internal spine before middle area.
description: Published as part of Cui, Zhenzhen & Bian, Xun, 2025, A new species of Tamdaora Gorochov, 1998 (Orthoptera: Tettigoniidae: Meconematinae) from Yunnan, China, pp. 175-178 in Zootaxa 5569 (1) on pages 175-178, DOI: 10.11646/zootaxa.5569.1.8, http://zenodo.org/record/14704068