Pseudowuiessa producta Bai, Heiss & Cai

Shi, Kai, Bai, Xiaoshuan, Wu, Zhiyi, Heiss, Ernst & Cai, Wanzhi, 2016, Pseudowuiessa, a new genus of brachypterous Mezirinae (Hemiptera: Heteroptera: Aradidae) from China, Zootaxa 4158 (1), pp. 146-150 : 149

Pseudowuiessa producta Bai, Heiss & Cai , sp. nov.

( Figures 1–5 )

Description. Colour, integument and vestiture. Body blackish brown; eyes reddish. Thoracic tergites and pleura, scutellum, most of abdominal lateral plates of third to sixth abdominal sterna covered with setigerous granules. Antennae and legs beset with erect setae.

Head. Genae produced over raised clypeus nearly reaching apex of first antennal segment, their lateral margins subparallel; antenniferous lobes finger-like, diverging anteriorly; vertex with V-shaped tuberculate ridges flanked by 2 (1+1) shallow ovate callosities; postocular lobes granulate; antennae 1.82 times as long as width of head across eyes; rostrum not reaching limits of rostral groove, rostral groove deep, narrow, open posteriorly ( Figures 3, 5 ).

Pronotum 2.6 times as wide as long at midline; disc with median sulcus flanked by 2 (1+1) ovate callosities, semi-surrounded by tuberculate carinae; laterad with 2 (1+1) prominent conical tubercles; transversely depressed posteriorly.

Scutellum. Disc granulate, sloping posteriorly and laterally of anterior median elevation; lateral margins slightly sinuate, with a row of granules; posterior margin widely rounded.

Hemelytra. Sclerotized wingpads of polygonal shape, nearly reaching apex of scutellum, surface granulate.

Abdomen. Anterior margin of tergal plate strongly protruding medially, reaching apex of scutellum, flanked by 2 (1+1)transverse sclerites of mtg I+II; lateral margins of deltg II–VII slightly sinuate; tergal plate moderately raised medially along mtg III–V forming rhomboid elevations, sloping posteriorly on mtg VI; laterad of median ridge the usual pattern of glabrous areas marked by shallow depressions, surface roughly punctured; sublateral glabrous areas reduced, separated from submedian areas by longitudinal carinae; deltg II–VII each with 2 glabrous areas, posterolateral angles slightly progressively protruding; paratergites VIII of female almost reaching apex of tergum IX ( Fig. 1 ).

Venter. Prosternum with median elevation, separated from mesosternum by a suture; meso-, metasterna and sternum II separated by sutures, with shallow smooth longitudinal impressions at middle. Metathoracic scent gland canal obliquely elevated, extending to lateral margins of thoracic pleura, not visible from above. Sterna III to VI with triangular, smooth spots medially, flanked by 2 (1+1) large, shallow depressions, these bearing 2 (1+1) round callous spots; laterad with 4 (2+2) smaller round callous spots. Spiracles II–VII ventral, remote from lateral margin, VIII lateral and visible from above ( Fig. 3 ).

Legs slender, femora moderately inflated, tibiae cylindrical, nearly straight, preapical comb on fore tibia present, claws without pulvilli.

Measurements (in mm, females (n=2), holotype in parentheses). Body length 9.0 (9.0); maximal width of abdomen 4.5–4.6 (4.6). Length head 1.8 (1.8); width 1.7 (1.7). Length pronotum 1.0 (1.0); width 2.6 (2.6). Length scutellum 1.0 (1.0); width 3.0 (3.0). Length antennal segments I–IV = 0.8, 0.6, 1.0, 0.7 (0.8, 0.6, 1.0, 0.7).

Type material. Holotype: female, China, Yunnan Province, Lushui County, Pianma , alt. 2000 m, 24.vi.2010, Liang Tang leg. ( IMNU) . Paratype: female, same data as holotype ( IMNU) .

Etymology. The specific epithet refers to the produced anterolateral angles of pronotum.

Distribution. So far only recorded from the type locality in China (Yunnan).

Figures

FIGURES 1 – 5. Pseudowuiessa producta sp. nov., female holotype. (1) habitus, dorsal view; (2) lateral view; (3) ventral view; (4) head and pronotum, dorsal view; (5) ventral view. Scale bars = 1 mm.