Phlugiolopsis biprocera sp. nov.

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Figures 1 – 2

Description. Male. Body small. Head. Face ovoid, fastigium verticis conical, apex rounded, dorsal surface with 1 thin furrow (Fig. 1A). Eyes nearly semiglobular, projecting outwards. Apical segments of maxillary palpi almost as long as subapical ones, apices faintly inflated (Fig. 1B). Pronotum. Elongate, anterior margin slightly arched, posterior margin narrowly rounded (Fig. 1A); lateral lobes longer than deep, narrowing to backward, humeral sinus absent (Fig. 1B). Wings. Tegmina strongly short, not surpassing the posterior margin of pronotum, apices obtusely rounded; hind wings absent. Legs. Ventral margins of all femora without spine. Procoxae swollen with 1 spine; protibiae and mesotibiae with 4 internal spines, 5 external spines and 1 pair of apical spurs on ventral surfaces. Hind tibiae with 25–29 internal and 27–30 external spines on dorsal surface, apices bearing 1 pair of dorsal spurs and 2 pairs of ventral spurs. Abdomen. Posterior margin of tenth abdominal tergite significantly projecting with a small median concavity. Cerci densely setose; basal half of cerci stout, slightly narrowing in lateral view (Fig. 1D), internal margin lobate expansion with 1 large conical process on dorsal surface (Fig. 1F) and 1 small conical process on ventral surface (Fig. 1G); apical half slender and spine-shaped which slightly incurved, apices subacute (Fig. 1G). Subgenital plate longer than wide, basal area with triangular membranous area in middle, lateral margins terminating, apex triangularly projecting (Fig. 1G). Styli densely setose and roughly conical, faintly curving forward, apices obtuse, inserted at the subapical area of subgenital plate on ventral surface (Fig. 1H). Genitalia membranous.

Female. Posterior margin of tenth abdominal tergite faintly projected. Epiproct tongue-shaped, dorsal surface furrowed along the midline, posterior margin rounded (Fig. 2C). Cerci very short and conical, gradually narrowing, apices acute. Subgenital plate triangular in ventral view, wider than long; baso-lateral areas roundly expanded, curving dorsad; posterior margin narrowly rounded (Fig. 2E). Ovipositor slightly upcurved behind middle area, dorsal and ventral margins smooth, dorsal valvulae slightly longer than ventral ones, dorsal valvulae with apices acute, apices of ventral valvulae hook-shaped (Fig. 2G).

Coloration. Body yellowish brown. Eyes black. Antennae with light brown rings on each segment. Dorsal surface of head with 2 pairs of longitudinal brown stripes, the lateral stripes extending to the posterior margin of pronotum. Scapes and pedicelli brown. Disc of pronotum light brown between lateral stripes. Apices of femora and basal areas of tibiae brown. Apices of tegmina yellowish brown. Abdominal tergites brown. Subgenital plate yellowish brown.

Material examined. Holotype: male, Dajianshan, Maguan, Yunnan, July 28, 2021, coll. by Xun Bian and Wei Bin. Paratypes: 2 males and 3 females, the other information as holotype.

Measurements (mm). Body: ♂ 7.9 – 9.0, ♀ 9.1 – 9.5; pronotum: ♂ 4.3 – 4.5, ♀ 4.0 – 4.7; tegmen: ♂ 4.0 – 4.5, ♀ 3.7 – 4.1; postfemur: ♂ 8.7 – 9.7, ♀ 8.9 – 9.3; ovipositor: 4.1–4.4.

Distribution. Yunnan (Maguan).

Discussion. The new species can be distinguished from the other species of the genus by the shape of male cerci and male subgenital plate.

Etymology. The name of the new species is derived from male cerci with two conical processes at the basal area.