Phlugiolopsis placentis Yao, Bian & Zhang, 2025, sp. nov.
Creators: name: Yao, Yuqing
name: Bian, Xun
name: Zhang, Bin
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Orthoptera
Tettigoniidae
Phlugiolopsis
Phlugiolopsis placentis

description: Phlugiolopsis placentis sp. nov.
小圆叶吟ª
Figures 5
Description. Male. Body small. Fastigium verticis conical, furrowed along the midline (Fig. 5A). Eyes spherical, projecting outwards. Apical segments of maxillary palpi longer than subapical ones, apices slightly inflated (Fig. 5B). Thorax. Anterior margin of pronotum nearly straight, posterior margin rounded (Fig. 5B); lateral lobes longer than high, narrowing to backward, humeral sinus indistinct (Fig. 5B). Legs. Fore coxae with 1 small spine. All femora unarmed on ventral surfaces, apices of genicular lobes of hind femora obtusely rounded. Fore tibiae ventrally with 3–4 internal spines, 4 external of spines and 1 pair of apical spines; tibial tympana open on both sides, ovoid. Middle tibiae ventrally with 2–4 internal spines, 3–4 external spines and 1 pair of apical spines. Hind tibiae with 16–21 pairs of spines on dorsal surfaces, ventral surfaces with 2 internal and 3 external spines, apices with 1 pair of dorsal spurs and 2 pairs of ventral spurs. Tegmina and wings. Tegmina short and slightly surpassing the posterior margin of pronotum, reaching the middle of second abdominal tergite. Hind wings absent (Fig. 5B). Abdomen. Posterior margin of tenth abdominal tergite faintly excavated in middle (Fig. 5C). Cercus short, basal half with 1 semicircular lobe on interno-dorsal margins (Fig. 5D), apical half spoon-shaped (Fig. 5E); ventral margin with 1 triangular lobe (Fig. 5F). Subgenital plate longer than wide, base transverse, lateral margins rolling dorsad and converging, posterior margin faintly projecting (Fig. 5F). Styli slender, apices obtuse, inserted on postero-lateral angles of subgenital plate (Fig. 5F).
Female. Larger than male. Tenth abdominal tergite narrow posteriorly faintly concave. Cercus conical, apex acute. Ovipositor moderately upcurved, stout at base, narrowing toward tip, apices of dorsal valvulae acute, ventral valvulae with an indistinct hook at apices (Fig. 5H). Subgenital plate semielliptical, posterior margin rounded with a small median concavity (Fig. 5I).
Coloration. Body blackish. Eyes brown.Antennal socket and internal margins of basal two segments of antennae black, flagellum with blackish ring at apical area of each segment. Dorsal surface of head with four longitudinal blackish brown stripes. Disc of pronotum with a longitudinal black stripe on both sides, between them blackish brown. Apices of femora and tarsi blackish brown. Abdominal tergites and sternites blackish brown.
Measurements (mm). BL: ♂ 6.8–7.3, ♀ 8.7; PL: ♂ 3.0–3.3, ♀ 3.7; TL: ♂ 1.1–1.3, ♀ 1.4; HFL: ♂ 6.2–6.6, ♀ 8.0; OvL: 4.8
Material examined. Holotype: male, Xiaoheishan, Longling, Yunnan, September 5, 2024, coll. by Ting Luo and Yanting Qin. Paratypes: 1 female, the other information as holotype; 1 male, Dahaoping, Gaoligongshan, Tengchong, Yunnan, September 1, 2024, coll. by Ting Luo and Yanting Qin.
Distribution. Yunnan (Longling, Tengchong).
Discussion. The new species differs from other species of Phlugiolopsis by the shape of male cerci: interno-dorsal margin with 1 circular lobe, directing upward; middle area with 1 triangular ventral process; apical area expanded on dorsal margin, apical margin bifurcated in lateral view.
Etymology. Named according to the male cerci bearing a circular lobe on interno-dorsal margin.
description: Published as part of Yao, Yuqing, Bian, Xun & Zhang, Bin, 2025, Four new species of the genus Phlugiolopsis (Orthoptera: Tettigoniidae: Meconematinae) from Western Yunnan, China, pp. 568-578 in Zootaxa 5590 (4) on pages 575-577, DOI: 10.11646/zootaxa.5590.4.7, http://zenodo.org/record/14953625