Arge cinnabarina Gussakovskij, 1935

9. Arge cinnabarina Gussakovskij, 1935

( Figs 12 View FIGURE 12 , 13 View FIGURE 13 )

Arge cinnabarina Gussakovskij, 1935: 227 (key), 247 (description), 397 (key), 412 (description), Fig. 73, ♂, ♀; Taeger et al. 2010: 127.

Current status. Arge cinnabarina Gussakovskij, 1935 .

Type locality. China, Sichuan, Tashujvanj-Lujgupin.

Lectotype (designated here): ♀ <golden circle> // Сычуань, Ташуйвань-ЛЮйгупинъ [ China, Sichuan, Tashujvanj-Lujgupin ], 2.09.[18]93, Потанинъ [ G.N. Potanin leg.] // Arge cinnabarina , sp. nov., ♀ Gussakovskij det. // DEI-GISHym 89431 // SYNTYPUS Arge cinnabarina Guss., 1935 , ♀, teste A. Taeger 2018 // Zoological Institute St. Petersburg INS_HYM_0001911 [ ZISP] .

Paralectotype: ♂, same labels as in lectotype, but 1.09.[18]93 // DEI-GISHym 89430 // Zoological Institute St. Petersburg INS_HYM_0001912 [ ZISP] .

Description. Female ( Fig. 12 View FIGURE 12 ). Body length 8.1 mm; fore wing length 7.3 mm.

Colour. Head black, without metallic lustre, mouthparts, legs, antennae dark brown, thorax and most part of tergite 1 orange, abdomen yellow. All veins and pterostigma dark brown. wing at base and cell C slightly darkened. Head and thorax with uniform white-yellow setae. Abdomen in basal half almost naked, at apex (including saw sheath) with dense light brown setae.

Head. Head behind eyes not expanded. Distance between eyes 1.1 × vertical diameter of eye; eye with vertical diameter 1.8 × its horizontal diameter. Postocellar area not convex, with weak lateral furrows. POL: OCL: OOL as 1.0: 1.0: 0.9. Medial fovea wide, flat, in upper part with deep fossa and open towards frontal area. Lateral carinae blunt, converging downwards, but not united and not forming median carina. Supraclypeal area weakly convex. Malar space nearly equal diameter of frontal ocellus. Clypeus with distinct semi-circular median excision, half of its width. Labrum with deep median notch.

Antennae. Antennal length 1.4 × maximum head width; flagellum weakly curved at base, apex narrowly rounded. Antenna densely covered with short setae.

Thorax. Mesopleuron smooth, evenly covered spread setae; scutellum flat and broadly rounded at apex.

Legs. Middle and hind tibia with preapical spurs; tibial spurs simple. Basal tarsomeres of hind tarsus longer than next three combined.

Wings. In fore wing, cell 3Rs with anterior margin longer than posterior margin, strongly expanded externally. Vein 3r-m sigmoidal curved. Veins B and M of fore wing join up at same point on vein R. Membrane of cell 1Rs with dense, long setae. Wing margin between veins M and Cu ciliate, its setae longer than width of vein M.

Abdomen. Abdomen distinctly narrowed towards apex. Saw sheath length 2.0 × width, simple, parallel-sided, almost oblique at apex ventrally; in lateral view narrow, straight on ventral margin, bluntly rounded at apex.

Lance in lateral view sickle-shaped, narrow, distinctly pointed at apex, with very large, sparse (7 distinct) annuli, which looks like projecting transverse serrate keels. Maximum width of lance weakly greater than lancet width. Carina of apical part of dorsal margin with weakly developed, but with large irregularly shaped denticles, remaining part of dorsal margin with longitudinal shallow fossa. Lancet sickle-shaped, clearly acuminate at apex. Annuli straight and dorsally inclined towards apex, in apical part indistinct. Annular spines (ctenidia) thick, wide and blunt, slightly shorter than width of annulus. Ventral margin with 13 well-distinct, strongly sclerotised serrulae. Serrulae with spiculella, triangular, acute, turned backwards, with large irregular denticles along anterior margin. Between serrulae without pore canals of marginal sensilla.

Male ( Fig. 13 View FIGURE 13 ). Body length 6.6 mm; fore wing length 6.2 mm.

In colouration as female, but antennae, head, hind margin of pronotum, most part of tegulae black with blue metallic lustre. Abdomen at apex with whitish setae. Hind femora except apex orange. POL: OCL: OOL as 1.4: 1.0: 1.2. Lateral carinae of medial fovea almost parallel and not joined below. Clypeus with wide distinct semi-circular median excision. Antennal length 2.0 × maximum head width; flagellum weakly evenly curved, covered with long but thin setae along frontal margin, narrowly rounded at apex. Subgenital plate in ventral view with flat, weakly notched full-width posterior margin.

Genitalia as in Fig. 13j View FIGURE 13 , gonostipes narrow, parallel. Harpe elongate, rounded at apex, 1.5 × as long as width at base, evenly covered by setae. Valve of penis subtriangular, with pointed lobe at apex. Valviceps in dorsal view slightly broadened towards apex, with lateral lobe in middle; in lateral view apex in form of triangular, strongly sclerotised lobe, curved dorsally with large pores along external margin; ventrally with large, elongated, at apex rounded and weakly pigmented, poreless lobe and deep notch at base. Dorsal process (ergot) short and faint.

Remark. The original description is based on one female and two male syntypes originating from several collection sites in the “Sychuan’ ( Sichuan, Tashujvanj-Lujgupin) and China (without specifying the location) (translated from Gussakovskij 1935: 412)”. One female and one male were found in ZISP. The female from Sichuan is here designated as the lectotype.