Impatiophila ptyonosternata Fu & Gao, sp. nov.
Creators: name: Fu, Zhao
name: Toda, Masanori J.
name: Li, Nan-Nan
name: Zhang, Ya-Ping
name: Gao, Jian-Jun
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Drosophilidae
Impatiophila
Impatiophila ptyonosternata

description: 9) Impatiophila ptyonosternata Fu & Gao, sp. nov.
(Fig. 19; Pl. 1H; Pl. 6H)
Diagnosis. Setae of middle row on 2nd costal section all heavy, peg-like, present beyond tip of R2+3. Abdominal tergites III‒V each with caudal, black band medially protruded (Pl. 1H). Hindleg tibia without black, apically blunt, stout spine at outer apex on underside. Male abdominal sternite VI wider than long. Tenth sternite somewhat triangular, roundly convex on dorsal margin (Fig. 19 D); gonopod apically narrowing, finger-shaped in lateral view (Fig. 19 F).
Description (♂, ♀). Head: Cibarium with 3−4 medial and 4−5 posterior sensilla per side.
Thorax (Pl. 1H): Postpronotum yellow to yellowish brown; scutum black to blackish brown, pale along transverse suture and throughout lines of ipsilateral dorsocentral setae; scutellum blackish brown, pale laterally; pleura yellowish brown to brown.
Wing (Pl. 1H) hyaline; veins yellowish brown. C1 setae 2, subequal. Haltere pale yellow.
Abdomen (Pl. 1H): Tergites yellow, with black caudal bands broadened laterally. Sternites grayish brown; male VI posteriorly wider, concave on posterior margin.
Male terminalia (Fig. 19 A–F): Epandrium pubescent except for anterial and ventral portions, ventrally with 12 long setae; caudoventral portion broad, obliquely truncate apically, with ca. 19 short, stout setulae. Surstylus with 1 seta in addition to 1 stout, upturned prensiseta at caudodorsal corner, 6 apically converging prensisetae along distal margin and 1 short seta near ventral apex. Cercus pubescent on anterior half, with ca. 26 long setae. Hypandrium long, largely parallel-sided. Paramere curved dorsad and 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. 19 G, H; Pl. 6H): Oviscapt valve gently curved on dorsosubapical margin and less expanded dorsomedially in lateral view, with 6 dorsal ovisensilla, 13−14 lateral ones on slightly convex margin of broad apicolateral flap and 12−14 distally increasing in size on nearly straight, ventral margin. Spermathecal capsule brown; introvert depth of duct about 1/2 of capsule height.
Measurements: BL = 2.63 (2♂ paratypes: 2.78−2.83, 3♀ paratypes: 2.41−2.81) mm, ThL = 1.10 (1.16−1.16, 1.06−1.20) mm, WL = 2.62 (2.73−2.75, 2.53−2.91) mm, WW = 1.14 (1.17−1.20, 1.16−1.30) mm.
Indices: arb = 3/1 (2♂, 3♀ paratypes: 3/1), FW/HW = 0.46 (0.46−0.48), ch/o = 0.13 (0.10−0.15), prorb = 0.97 (0.97−1.05), rcorb = 0.53 (0.58−0.66), orbito = 1.19 (0.81−1.20), vb = 0.31 (0.26−0.38), dcl = 0.47 (0.52−0.63), dcp = 0.40 (0.35−0.39), sterno = 0.68 (0.62−0.69), m-sterno = 0.82 (0.76−0.81), sctl = 1.06 (0.99−1.06), sctlp = 1.01 (1.02−1.13), C = 2.58 (2.46−3.08), 4c = 0.78 (0.68−0.84), 4v = 1.50 (1.47−1.65), 5x = 1.50 (1.50−1.64), ac = 2.83 (2.51−2.92), M = 0.41 (0.42−0.46), C3F = 0.12 (0.00−0.20).
Holotype. ♂ (#00296), Tongmai Village, Yigong Town, Bomi County, Linzhi District, Xizang, China, 30°06′10′′N, 95°04′49′′E, ca. 2080 m, 9.x.2010, ex Impatiens? arguta Hook. f. et. Thoms. (Fig. 1 D), J.J. Gao (KIZ).
Paratypes. CHINA: 1♂, 3♀ (#00297, #00313, #00463, #00464), same data as holotype; 1♂ (#00538), along the way from Beibeng Town to Yarang Village, Motuo Town, Motuo County, Linzhi District, Xizang, 1.x.2010, ex Impatiens? arguta Hook. f. et. Thoms. (Fig. 1 D), J.J. Gao (KIZ, SEHU).
Distribution. China (Xizang).
Etymology. Referring to the tenth sternite (sternum) shaped like fan (ptyon).
description: Published as part of 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, pp. 1-100 in Zootaxa 4120 (1) on pages 38-39, DOI: 10.11646/zootaxa.4120.1.1, http://zenodo.org/record/266831