Phlugiolopsis expansis, Zheng & Duan & Liu & Chang, 2023

Zheng, Mengjia, Duan, Yanhao, Liu, Qing & Chang, Yanlin, 2023, A supplement of the genus Phlugiolopsis Zeuner, 1940 (Tettigoniidae: Meconematinae) from Yunnan, China, Zootaxa 5306 (3), pp. 385-391 : 385-387

Phlugiolopsis expansis sp. nov., Chinese name Kffḃễ

( Fig.1 )

Description. Male. Body small. Fastigium verticis conical, apex obtuse, furrowed on dorsal surface. Eyes oval, protruding forward and outward. Apical and subapical segments of maxillary palpus nearly equal in length, broadened apically and truncated.

Pronotum elongate, anterior margin almost straight, posterior margin obtusely triangular; lateral lobe longer than deep, without humeral sinus. Tegmina short, terminals slightly surpassing posterior margin of pronotum, reaching middle area of second abdominal tergite, apices rounded; hind wings absent.

All femora unarmed on ventral surfaces. Fore coxa with 1 spine; fore tibia with oval and open tympana, with 6 outer and 5 inner spines on ventral surface. Middle tibia with 4 spines on inner margin and 5 spines on outer margin of ventral surface. Genicular lobes of hind femur with apices rounded; hind tibia with 21–25 spines on both sides of dorsal surface separately, bearing 1 pair of dorsal apical spurs and 2 pairs of ventral apical spurs.

Tenth abdominal tergite with posterior margin concave. Cercus obviously incurved, with a long and narrow lamellar expansion on interno-dorsal surface between basal area and apical third, which has a triangular process at base, its tip rounded ( Fig.1D ); basal half expanded inwards on ventral surface, its posterior area with a triangular process, apex rounded ( Fig. 1D, F ); apical third of cercus cylindrical, tip acute. Basal area of subgenital plate ( Fig. 1F ) broad, apical area somewhat narrow; basal margin faintly concave, apical area triangularly protruding backwards, apex rounded; styli short and conical, tips rounded, inserted on lateral margins of subapex of subgenital plate.

Female. Appearance is similar to male. Posterior margin of tenth abdominal tergite slightly concave. Epiproct tongue-shaped. Cercus conical, apex acute. Ovipositor short, gently curved upwards; both dorsal and ventral margins smooth, dorsal valvula slightly longer than ventral one, dorsal valvula with apex acute, ventral valvula with apex hook-shaped. Subgenital plate ( Fig. 1G ) broader than long, basal margin relatively straight, basal area with a triangular expansion on lateral margin separately, its tip acute; posterior margin lightly concave.

Coloration. Body yellowish brown. Eyes reddish brown. Dorsum of head with 4 longitudinal dark brown stripes. Scape and pedicel of antenna brown, lamellar uplift on inner margin of antennal scrobe dark brown. Disc of pronotum with a broad longitudinal brown stripe, posterior half slightly widened, lateral margins of two thirds anterior area of longitudinal stripe black. Exposing area of tegmen light brown. Tarsi brown.

Material examined. Holotype: ♁, Dongping, Qiaojia, Yunnan, 24 August, 2020, coll. Tao Wang and Qi Guo. Paratypes: 1♁ 1♀, the same data as holotype . Other specimens: 1♁ 1♀, the same data as holotype .

Measurements (mm). Body: ♁7.7–7.9, ♀ 9.0–10.2; pronotum: ♁3.3–3.7, ♀ 3.7–3.8; tegmen: ♁1.1–1.4, ♀ 1.3– 1.7; hind femur: ♁6.9–7.3, ♀ 7.9–8.0; ovipositor: 6.7–6.8.

Discussion. The new species resembles Phlugiolopsis brevis Xia & Liu, 1993 , it differs from the latter in: male cercus with a long and narrow lamellar expansion on interno-dorsal surface between basal area and apical third, which has a triangular process at base, its tip rounded; basal half of cercus expanded inwards on ventral surface, its posterior area with a triangular process, apex rounded. Basal area of female subgenital plate with a triangular expansion on lateral margin separately, its tip acute.

Etymology. The name of new species is derived from male cercus expanded on both dorsal and ventral surfaces separately, from Latin ‘expans-’ (expanding).

Distribution. China (Yunnan).

Figures

FIGURE 1. Phlugiolopsis expansis sp. nov., male: A–B. head and pronotum: A. dorsal view; B. lateral view; C–F. apex of abdomen: C. dorsal view; D. right cercus in dorsal view; E. dorso-apical view; F. ventral view; female: G. subgenital plate in ventral view; H. ovipositor in lateral view; I. apex of ovipositor in lateral view. Abbreviation: p. process of lamellar expansion of cercus.