Phlugiolopsis acuta, Zheng & Su & Shi, 2024

Zheng, Mengjia, Su, Jie & Shi, Fuming, 2024, Five new species of the genus Phlugiolopsis Zeuner, 1940 (Tettigoniidae: Meconematinae) from China, European Journal of Taxonomy 935, pp. 29-53 : 36-38

Phlugiolopsis acuta sp. nov.

urn:lsid:zoobank.org:act:2FAFEE0B-AD6A-4EFD-9F22-93FB7C44D8A1

Figs 4 , 15

Diagnosis

The new species is similar to Phlugiolopsis trullis Bian, Shi & Chang, 2012 ( Fig. 10 ), but can be distinguished from it in male cercus with expansion on base to middle area of ventral surface; basal margin of female subgenital plate V-shaped concave, posterior margin arc-shaped protruding.

Etymology

The name of the new species refers to the male cercus being acute, from the Latin ‘ acuta ’ (adjective, femininum) meaning ‘acute’.

Material examined

Holotype CHINA • ♂; Yunnan, Yingjiang, Tongbiguan ; 30 Oct. 2019; Peng Cui leg.; HBU.

Paratypes CHINA • 1 ♂; same collection data as for holotype; 28 Oct. 2019; Peng Cui leg.; HBU • 1 ♂; same collection data as for preceding; 12 Aug. 2019; Yanqing Li leg.; HBU • 1 ♀; same collection data as for preceding; 26 Oct. 2019; Peng Cui leg.; HBU • 1 ♀; same collection data as for preceding; 16 Aug. 2019; Yanqing Li leg.; HBU .

Other material

CHINA • 2 ♂♂, 4 ♀♀; same collection data as for holotype; 14 Sep. 2023; Hao Xu and Yueting Duan leg.; HBU • 1 ♂, 5 ♀♀; same collection data as for preceding; 15 Sep. 2023; HBU • 1 ♂, 1 ♀; same collection data as for preceding; 5 Aug. 2019; Yanqing Li and Limin Lu leg.; HBU • 5 ♀♀; same collection data as for preceding; 28 Oct. 2019; Peng Cui leg.; HBU • 1 ♂; same collection data as for preceding; 30 Oct. 2019; Peng Cui leg.; HBU • 1 ♀; same collection data as for preceding; 26 Oct. 2019; Yanqing Li leg.; HBU • 1 ♀; same collection data as for preceding; 10 Aug. 2018; Peng Cui leg.; HBU • 1 ♂; Yunnan, Yingjiang, Xima ; 5 Aug. 2019; Limin Lu leg.; HBU .

Description

BODY. Small.

HEAD. Fastigium verticis conical, apex rounded, with median sulcus on dorsal area. Eyes nearly globular, convex forwards ( Fig. 4A ). Apical and subapical segments of maxillary palpus almost equal in length, apical area inflated.

THORAX. Pronotum elongate, anterior margin faintly prominent, posterior margin rounded; lateral lobe longer than high, without humeral sinus ( Fig. 4B ).

TEGMEN. Tegmina short, terminals feebly surpassing posterior margin of pronotum, reaching posterior margin of second abdominal tergite, apices rounded ( Fig. 4B ). Hind wings absent.

LEGS. All femora without spines on ventral surfaces. Fore coxa with 1 spine; fore tibia with 5 spines on inner side and 5–6 spines on outer side of ventral surface, tibial tympana open and oval on both sides. Middle tibia with 6 outer and 5 inner spines on ventral surface. Hind femur with apices of genicular lobes rounded; hind tibia with 25–28 spines on both inner and outer margins of dorsal surface, bearing 2 pairs of ventral apical spurs and 1 pair of dorsal apical spurs.

MALE ABDOMEN. Tenth abdominal tergite slightly concave on posterior margin. Basal half of cercus with long and narrow lamellar expansion on interno-dorsal surface, its posterior area truncate; cercus expanded inwards between near basal to middle area on ventral surface; apical half of cercus cylindrical, tip acute ( Fig. 4C–D ). Subgenital plate subtrapezoidal; basal margin with V-shaped membranous area, apical area with two triangular processes, apices rounded, curved ventrally; styli conical with apices subacute, inserted on ventral surface of subapex of subgenital plate ( Fig. 4D ).

FEMALE ABDOMEN. Posterior margin of tenth abdominal tergite almost straight. Cercus conic, tip acute. Ovipositor short, faintly upcurved; dorsal valvula and ventral valvula subequal in length, dorsal valvula with apex acute, ventral valvula with apex hook-shaped ( Fig. 4E ). Subgenital plate with basal margin almost straight; middle broad, apical area narrow, posterior margin roundly triangular protruding ( Fig. 4F ).

COLORATION. Body yellowish brown. Eyes black. Dorsal area of head with 4 longitudinal dark brown stripes. Flagellum of antenna with sparse annulate brown stripes, lamellar uplift on inner margin of antennal scrobe dark brown. Disc of pronotum with broad longitudinal brown stripe, which widened and pale on posterior area, lateral margins black on anterior two thirds. Genicular lobes black; tarsi dark brown.

MEASUREMENTS (mm). Body length: ♂: 6.6–8.6, ♀: 7.9–8.4; length of pronotum: ♂: 3.3–4.1, ♀: 3.4– 3.5; length of tegmen: ♂: 1.1–1.7, ♀: 1.1–1.6; length of hind femur: ♂: 8.2–9.5, ♀: 8.1–8.9; length of ovipositor: 5.0–5.2.

Distribution

China (Yunnan).

Figures

Fig. 4. Phlugiolopsis acuta sp. nov. A–D. Holotype, ♂ (HBU). A–B. Head and pronotum. A. Dorsal view. B. Lateral view. C–D. Apex of abdomen. C. Dorsal view. D. Ventral view. E–F. Paratype, ♀ (HBU). E. Ovipositor in lateral view. F. Subgenital plate in ventral view.

Fig. 15. Distribution of the genus Phlugiolopsis Zeuner, 1940 in China.

Fig. 10. Phlugiolopsis trullis Bian, Shi & Chang, 2012. A–D. ♂ (HBU). A–B. Head and pronotum. A. Dorsal view. B. Lateral view. C–D. Apex of abdomen. C. Dorsal view. D. Ventral view. E–F. ♀ (HBU). E. Ovipositor in lateral view. F. Subgenital plate in ventral view.