Impatiophila tumidivalva Fu & Gao

Fu, Zhao, Toda, Masanori J., Li, Nan-Nan, Zhang, Ya-Ping & Gao, Jian-Jun, 2016, A new genus of anthophilous drosophilids, Impatiophila (Diptera, Drosophilidae): morphology, DNA barcoding and molecular phylogeny, with descriptions of thirty-nine new species, Zootaxa 4120 (1), pp. 1-100 : 39-40

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).

Figures

FIGURE 1. Flowers from which some of the BVD (Impatiophila gen. nov.) flies employed in the present study were collected. Sites of photographing are given in parentheses (see Fig. 2 for detailed information about each site). A, Impatiens siculifer Hook. f. (site 3); B, Impatiens sp. aff. bahanensis Hand. - Mazz (site 2); C, Impatient desmantha Hook. f. (site 1), D, Impatiens arguta Hook. f. et. Thoms. (site 4); E, Impatiens radiata Hook. f. (site 10); F, Impatiens racemosa (site 17); G, Gesneriaceae sp. 1 (site 22); H, Impatiens siculifer Hook. f. (site 6); I, Impatiens uniflora Hayata (site 23); J, Gesneriaceae sp. 2 (site 6).

FIGURE 20. Impatiophila tumidivalva Fu & Gao, sp. nov. Adult female (holotype, # 00376): A, oviscapt (lateral view); B, oviscapt (ventral view).