Impatiophila tongmaiensis 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 : 33-35

6) Impatiophila tongmaiensis Fu & Gao , sp. nov.

( Fig. 16 ; Pl. 1E; Pl. 6E)

Diagnosis. Setae of middle row on 2nd costal section all heavy, peg-like, present beyond tip of R2+3. Abdominal tergite V with caudal, black band medially neither interrupted/constricted nor protruded (Pl. 1E). Hindleg tibia with 1 black, apically blunt, stout spine at outer apex on underside.

Description (♂, ♀). Head (Pl. 1E): Eyes brownish. Cibarium with 2or 3 medial and 4–6 posterior sensilla per side.

Thorax (Pl. 1E): Postpronotum yellowish brown to brown; scutum black, pale along transverse suture, notopleural line and lines running through ipsilateral, dorsocentral setae and extending to notum; scutellum black, pale laterally; pleura brown to blackish brown.

Wing (Pl. 1E) hyaline; veins yellowish brown. C1 setae 2; ventral one thinner and shorter. Haltere pale yellow. Abdomen (Pl. 1E): Tergites each with broad, blackish brown to black, caudal band; bands on II −IV medially with narrow, deep notches. Sternites grayish brown; male VI posteriorly wider, concave on posterior margin.

Male terminalia ( Fig. 16 A −F): Epandrium sparsely and patchily pubescent except for anterior and ventral portions, ventrally with ca. 12 long setae; caudoventral portion narrow, somewhat pointed apically, with a patch of ca. 18 setulae. Surstylus with 1 seta in addition to 1 stout, upturned prensiseta at caudodorsal corner, 6 apically converging prensisetae along distal margin and 1 seta near ventral apex. Tenth sternite dorsally broader, slightly pointed at apex of convex, dorsal margin. Cercus anteromedially pubescent in patch, with ca. 28 long setae. Hypandrium somewhat quadrate, 3/4 as wide as long. Gonopod apically very sharp, curved ventrad. Paramere nearly straight in lateral view, longer than twice of width in lateral view, with 6 sensilla. Aedeagal basal process slightly longer than 1/2 length of paramere.

Female terminalia ( Fig. 16 G, H; Pl. 6E): Oviscapt valve gently curved on dorsosubapical margin and less expanded dorsomedially in lateral view, with 5 dorsal and 18−19 lateral ovisensilla and 13 distally increasing in size on nearly straight, ventral margin. Spermathecal capsule brown; introvert depth of duct about 1/2 of capsule height.

Measurements: BL = 2.48 (4♂ paratypes: 2.37−2.83, 5♀ paratypes: 2.62−2.83) mm, ThL = 1.18 (1.03−1.24, 1.07−1.32) mm, WL = 2.91 (2.55−2.93, 2.60−3.12) mm, WW = 1.30 (1.14−1.28, 1.10−1.37) mm.

Indices: arb = 3/1 (4♂, 5♀ paratypes: 4−2/1−2), FW/HW = 0.45 (0.44−0.51), ch/o = 0.14 (0.07−0.14), prorb = 0.91 (0.94−1.12), rcorb = 0.62 (0.59−0.72), orbito = 1.04 (0.96−1.15), vb = 0.35 (0.33−0.44), dcl = 0.46 (0.47−0.63), dcp = 0.33 (0.32−0.40), sterno = 0.67 (0.62−0.75), m-sterno = 0.82 (0.61−0.91), sctl = 1.04 (0.93−1.05), sctlp = 1.17 (1.04−1.34), C = 2.61 (2.44−2.70), 4c = 0.80 (0.78−0.94), 4v = 1.48 (1.51−1.81), 5x = 1.46 (1.35−1.63), ac = 2.55 (2.41−2.92), M = 0.46 (0.42−0.49), C3F = 0.20 (0.06−0.20).

Holotype. ♂ (#00294), Tongmai Village, Yigong Town, Bomi County, Linzhi District, Xizang, China, 30°06′10′′N, 95°04′49′′E, 2080 m, 9.x.2010, ex Impatiens ? arguta Hook. f. et. Thoms. ( Fig. 1 D), J.J. Gao ( KIZ).

Paratypes. CHINA: 4♂, 5♀ (#00295, #00493, #00494, #00638, #00640−43, #00681), same data as holotype ( KIZ, SEHU).

Distribution. China (Xizang).

Etymology. Pertaining to the type locality.

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 16. Impatiophila tongmaiensis Fu & Gao, sp. nov. Adult male (holotype, # 00294) and female (paratype, # 00295): A, periphallic organs (caudolateral view); B, caudoventral part of epandrium; C, surstylus (caudal view); D, tenth sternite; E, phallic organs (dorsal view); F, phallic organs (lateral view); G, oviscapt (lateral view); H, oviscapt (ventral view).