Antocha (Antocha) chonsaniana Podenas

Figs 5, 6

Antocha (Antocha) chonsaniana Podenas, 2015: 3 .

Material examined.

China – Gansu Prov. • 25 ♂♂; Tianshui, Zhangjialinchang; 1339 m a. s. l.; 34.6800°N, 106.3300°E; 13 Jul. 2017, Qilemoge leg.; CAU • 22 ♂♂, 2 ♀♀; Tianshui, Zhangjialinchang; 1339 m a. s. l.; 34.6800°N, 106.3300°E; 13 Jul. 2017, J. L. Zhou leg.; Cau . – Shaanxi Prov. • 2 ♂♂, 1 ♀; Yangxian, Maopingzhen, Shaojiagou; 911 m a. s. l.; 33.4288°N, 107.6789°E; 8 Aug. 2017, X. L. Chen leg.; CAU .

Diagnosis.

Body brown. Antenna short, reaching base of prescutum if bent backward. Prescutum and presutural scutum with three darker brown stripes on brown background. Wing grayish brown; stigma slightly darker, barely noticeable; crossvein m-cu before M fork, distance about 1 / 4 its length. Tergite 9 with posterior margin having shallow depression at middle; outer gonostylus strongly sclerotised, wide at base, narrowed to blunt apex. Aedeagus sword-shaped, blunt at apex. Inner branch of paramere elongated, blackened and blunt at apex. Interbase a narrow, elongated, apically acute lobe. Ovipositor with long, narrow cercus, apex raised, tapering; hypogynial valvae long, straight, reaching half cercus.

Description.

Male. Body length 4.39–4.87 mm, wing length 4.54–4.79 mm, antenna length 0.86–1.16 mm (N = 49).

Head (Fig. 5 a, b). Mostly pale brown. Vertex brown. Antenna pale brown, 16 - segmented, reaching base if bent backward; scape cylindrical; pedicel narrower at base, distal margin brown; flagellomeres oval, distal segments elongated, cylindrical, with erect, sparse setae (Fig. 5 a, b).

Thorax (Fig. 5 a, c). Mostly brown. Pronotum brown, with large dark brown spot in middle. Prescutum and presutural scutum brown, with three dark-brown stripes. Postsutural scutum brown, scutal lobes each with blunt, square, dark spots on anterior middle. Scutellum brown, with black lateral margin. Mediotergite brown, dark-brown marking at upper-anterior corners, with pale-brown stripes on the upper side of these markings (Fig. 5 c). Legs with fore-coxae pale brown; mid-coxae and hind-coxae lighter; trochanters pale brown with brown margins; femora pale brown, slightly swollen distally; tibiae brown, brown apices; tarsi brown, pale brown at base of first tarsi (Fig. 5 a, e). Wing grayish brown; stigma slightly darker, barely noticeable; R 1, CuA 1 and A 2 brown; crossvein m-cu before M fork, distance about 1 / 4 its length (Fig. 5 d). Halter pale brown, subhyaline; knob pale brown (Fig. 5 a).

Abdomen (Fig. 5 a). Mostly pale brown. Sternites 7–8 with brown stripe in middle. Abdominal setae brownish.

Hypopygium (Figs 5 f, 6). Mostly brown. Tergite 9 with dark-brown stripes in middle, shallow depression at mid-posterior margin (Fig. 6 a). Gonocoxite cylindrical, inner margin concave (Fig. 6). Outer gonostylus strongly sclerotized, wide at base, narrowed to blunt apex, bent inward. Inner gonostylus fleshy, slightly broader than outer gonostylus, covered with sparse, yellow setae; apex blunt. Aedeagal complex with parameres fused apically, base of paramere elongated, extending laterally with a gradual taper at apex (Figs 5 f, 6 a). Inner branch of paramere elongated, blackened and blunt at apex. Interbase a narrow, elongated, apically acute lobe. Aedeagus sword-shaped, blunt at apex.

Female. Body length 5.29–6.05 mm, wing length 5.37–5.61 mm, antenna length 0.84–1.24 mm (N = 3). Resembles male in head and wing.

Ovipositor (Fig. 5 g). Tergite 10 yellow, with brown spot. Cercus long, narrow, apex slightly raised and tapering. Hypogynial valve, straight, yellow, reaching about 1 / 2 of cercus.

Elevation range in China.

Adults were collected at altitudes ranging from 900 m to 1400 m.

Period of activity.

Adults were collected in July and August.

Distribution.

China (Gansu: Tianshui; Shaanxi: Yangxian), North Korea.

Remark.

This is the first report of this species from China.