Impatiophila tumidivalva Fu & Gao, sp. nov.

10) Impatiophila tumidivalva Fu & Gao, sp. nov.

(Fig. 20; Pl. 2A; Pl. 6I)

Diagnosis. Abdominal tergite dark brown to glossily black (Pl. 2A). Oviscapt valve strongly inflated in lateral view, strongly convex dorsosubapically (Fig. 20 A).

Description (♀). Head: Cibarium with 2−3 medial and 5 posterior sensilla per side.

Thorax (Pl. 2A): Postpronotum and pleura blackish brown; scutum and scutellum black.

Wing (Pl. 2A) hyaline; veins brown. C1 setae 2; ventral one shorter and thinner. Setae of middle row on 2nd costal section all weak, trichoid. Haltere pale yellow.

Legs (Pl. 2A) yellowish brown. Hindleg tibia with 2 black, apically blunt, stout spines at outer apex on underside.

Abdomen: Sternites grayish brown.

Female terminalia (Fig. 20 A, B; Pl. 6I): Oviscapt valve less expanded dorsomedially in lateral view, with 3−4 dorsal ovisensilla on strongly convex, dorsosubapical margin, 7 lateral ones and 9−12 distally increasing in size on nearly straight, ventral margin. Spermathecal capsule brown; introvert depth of duct about 1/2 of capsule height.

Measurements: BL = 2.52 mm, ThL = 1.15 mm, WL = 2.34 mm, WW = 1.05 mm.

Indices: arb = 2/1, FW/HW = 0.48, ch/o = 0.11, prorb = 0.98, rcorb = 0.68, orbito = 0.94, vb = 0.44, dcl = 0.59, dcp = 0.37, sterno = 0.71, m-sterno = 0.77, sctl = 1.05, sctlp = 1.00, C = 2.48, 4c = 0.91, 4v = 1.69, 5x = 1.68, ac = 2.29, M = 0.50.

Holotype. ♀ (#00376): Hanmi Village, Beibeng Town, Motuo County, Linzhi District, Xizang, China, 29°22′00′′N, 95°07′39′′E, ca. 2130 m, 26.ix.2010, ex Impatiens? arguta Hook. f. & Thoms. (Fig. 1 D) J.J. Gao (KIZ).

Distribution. China (Xizang).

Etymology. Referring to the strongly inflated (tumidus) oviscapt valve (valva).