Polycomus exspiravit He & Ma, 2022

He, Zhi-Xin, Wu, Qian & Ma, Li-Bin, 2022, A new genus and two new species of Swordtail Crickets (Orthoptera: Trigonidiidae; Trigonidiinae) from China, Zootaxa 5124 (5), pp. 585-593 : 590-592

Polycomus exspiravit He & Ma , sp. nov.

Chinese name: WDZ毛ṅDz

Figs. 1 , 4D–F , 5 , 6 , 7

Holotype. China: Male, Guangxi, Longzhou, Nonggang National Nature Reserve , on leaf of low plant at night, 106.96°E, 22.46°N, 3.X.2021, Zhixin He & Ning Wang coll. Paratypes. 4 males & 5 females, same data as holotype ( SNNU) .

Description. Male ( Figs. 5A , 6A, C, E , 7A ). Body size small, pubescent. Head small, slightly wider than the anterior margin of pronotum. Frontal rostrum slightly narrower than antennal scape. Eyes large and laterally protruding. Clypeus narrow and apically straight. Labrum shield-like, medially bumped, and apically concaved. Three apical joints of maxillary palpi distinctly elongated, fifth joint apically truncated. Pronotum transverse. Anterior margin straight, and the posterior slightly sinuate. The posterior conspicuously wider than the anterior. Tegmina pubescent. Six primary veins staggered with many transverse veins. The visible part of hindwings is half of the tegmina length. Internal tympanum large and shaped as long-oval, and external tympanum replaced by a pit. Hind tibia bearing three pairs of dorsal spurs.

Genitalia ( Fig. 4D–F ). Epiphallic median lobe scimitar-like and bearing apex curved outwards. Epiphallic lateral lobe almost rectangular-like, armed with truncated apex and significantly wider than the median lobe. Ectoparamere is partially membranous and partially sclerotized. Membranous portion enormously expanded and sclerotized part sickle-like, curved inward with somewhat blunt apex.

Female ( Figs. 5B , 6B, D, F , 7B ). Resemble male but colored lighter. Ovipositor blade-shaped.

Coloration. The body is a yellowish-brown color. At the occiput, there are an irregular dark brown pattern. The scape of the antenna is brown. In the front perspective, the face has motifs as double wings. Pronotic plate with three pairs of dark spots on a pale background. Pronotum's lateral margin is dark brown. Tegmina with many dark brown spots and discontinuous dark brown patches on the lateral portion. Blackish brown on the visible area of the hindwings. Sternite with a severing pattern of uniform black spots. The apical portion of the ovipositor of females is reddish brown.

Measurements. Male (n=5). BL 5.11±1.06, PL 0.67±0.12, TL 3.73±0.63, HFL 3.56±0.60. Female (n=5). BL 5.31±1.23, PL 0.75±0.14, TL 3.90±0.54, HFL 3.66±0.41, OL 1.98±0.28.

Etymology. The name refers that the vertex of the new species resembles a painted face ( Fig. 6E ).

Distribution ( Fig. 1 ). China (Guangxi).

Figures

FIGURE 1. Known distribution of Trigonidium rubrumoculus sp. nov. and Polycomus exspiravit sp. nov. in China.

FIGURE 4. Male genitalia. A–C. Trigonidium rubrumoculus sp. nov. D–F. Polycomus exspiravit sp. nov. A, D. Dorsal view. B, E. Lateral view. C, F. Ventral view.

FIGURE 5. Habitus photographs Polycomus exspiravit sp. nov. A. Male. B. Female. Scale bar: 2 mm.

FIGURE 6. Polycomus exspiravit sp. nov. A. Lateral view of male. B. Lateral view of female. C. Male tegmen. D. Female tegmen. E. face in anterior view. F. Female ovipositor in lateral view. Scale bar: 0.5mm.

FIGURE 7. Habitus (alive) of Polycomus exspiravit sp. nov. on leaf. A. Male. B. Female.