Phlugiolopsis (Longiloba) bispinata Bian, 2018

Bian, Xun & Shi, Fuming, 2018, New taxa of the genus Phlugiolopsis (Orthoptera: Tettigoniidae: Meconematinae) from Yunnan, China, with comments on the importance to taxonomy of the left tegmen, Zootaxa 4532 (3), pp. 341-366 : 345-346

Phlugiolopsis (Longiloba) bispinata Bian & Shi, sp. nov.

( Figure 1 )

Material examined. Holotype, 6, Huanglianshan, Lvchun , Yunnan, 17 August, 2016, coll. Xun Bian & Hongchao Shi .

Description. Male. Body small, yellowish brown. Head. Face yellowish brown. Scape and pedicel blackish brown, flagellum with some annulate, brownish stripes. Fastigium verticis conical, apex obtusely rounded, with a shallow furrow in the middle; dorsal surface of head with 4 distinct dark brown stripes ( Figure 1A ): outer stripes extending to internal margin of antennal socket, which continued along the pronotum, medial stripes fused in fastigium verticis ( Figure 1A ). Eyes round-oval, brown. Apical segments of maxillary palpi slightly longer than subapical ones, apices slightly inflated.

Thorax. Disc of pronotum with a median longitudinal brown stripe, the outer margins with 1 pair of blackish brown stripes; anterior margin of pronotum slightly straight, posterior margin narrowly rounded, metazona slightly raised; the lateral lobe longer than high, posterior margin oblique ( Figure 1A, B ).

Tegmina. Tegmina slightly protruding from the pronotum, the posterior margin reaching the middle area of second abdominal tergite ( Figure 1A ). Hind wings absent.

Legs. All femora without ventral spines, apices blackish brown, genicular lobes black. Fore coxae with a small spine. Fore tibiae with 4 pairs of spines and 1 pair of apical spines on ventral surface. Middle tibiae with 3 internal and 4 external spines on ventral surface, apices with 1 ventral spine. Genicular lobes of hind femora with apices obtuse, black; tibiae with 22–24 internal and 24–25 external spines on dorsal surface, ventral surface with 2–3 internal and 2–4 external spines, apices darkish brown with 1 pair of dorsal spines and 2 pairs of ventral spines.

Abdomen. Dorsal surface of abdomen with 1 brown median longitudinal band, lateral surface blackish brown. Centre of tenth abdominal tergite slightly angular concave. Cerci. Yellow. Basal half stout, internal margin obviously expanded, circular in internal view ( Figure 1C ). Apical half of cerci spine-shaped, curved internodorsad, apices obtuse ( Figure 1D, E ). Subgenital plate with base broad, gradually narrowing, basal margin arched concave, lateral margin curved dorsad ( Figure 1D ); centre of posterior area narrowly lobate projecting, obviously curved downwards, its apex sclerotized with 1 pair of small spines ( Figure 1F ). Styli slender, conical, inserted subapically on subgenital plate.

Female. Unknown.

Measurements. Body length: ♂ 7.7 mm; length of pronotum: ♂ 3.7 mm; length of tegmina: ♂ 2.1 mm; length of hind femora: ♂ 7.4 mm.

Distribution. CHINA (Yunnan).

Comments. The new species is very similar to Phlugiolopsis (Longiloba) complanispinis Bian, Shi & Chang, 2013 , but differs from the latter in: male cerci obviously longer, posterior margin of subgenital plate lobate projecting in the middle, it apex curved downward with 1 pair of small spines.

Etymology. The specific name is derived from the male subgenital plate with 1 pair of spines on apical area.

Figures

FIGURE 1. Phlugiolopsis (longiloba) Bispinata sp. nov. A–B. head and pronotum: A. dorsal view, B. lateral view; C–E. apex of abdomen: C. dorsal view, D. lateral view, E. apico-ventral view, F. ventral view; A–F. male.