Impatiophila furcatosternata 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 furcatosternata

description: 34) Impatiophila furcatosternata Fu & Gao, sp. nov.
(Fig. 40; Pl. 4E; Pl. 7G)
Diagnosis. Abdominal tergite IV with caudal, black band medially neither interrupted/constricted nor protruded (Pl. 4E). Scutum and scutellum unicolorously glossy black, without distinct color pattern (Pl. 4E). Hindleg tarsomere I with 2 black, apically blunt, stout spines at outer apex on underside. Tenth sternite slightly broader than long, dorsally dilated, with deep, narrow, V-shaped notch medially on dorsal margin (Fig. 40 D). Oviscapt valve with 4‒5 dorsal ovisensilla (Fig. 40 H).
Description (♂, ♀). Head: Cibarium with 2 medial and 4‒5 posterior sensilla per side. Labellum with 6 pseudotracheae per side.
Thorax (Pl. 4E): Postpronotum blackish brown; thoracic pleura blackish brown.
Wing (Pl. 4E) grayish brown; veins brown; C1 setae 2, subequal. Haltere pale yellow.
Legs (Pl. 4E) yellow.
Abdomen (Pl. 4E): Tergites yellowish brown, with broad, black, laterally broadened, caudal bands on II −V; bands on II and III medially narrowly interrupted; VI entirely blackish brown. Sternites grayish yellow.
Male terminalia (Fig. 40 A −F): Epandrium sparsely pubescent on posterior portion of dorsal half, with ca 10 long setae on ventral half and ca. 15 shorter setae on caudoventral portion. Surstylus with 2 long setae in addition to 2 more or less stout, upturned prensisetae at and above caudodorsal corner, 6 prensisetae along distal margin and 1 seta at ventral apex. Cercus slightly pubescent on anterior portion, with ca. 23 long setae. Hypandrium nearly parallel-sided, roundish on anterior margin, posteriorly convex in lateral view. Gonopod broad, apically somewhat triangular and curved ventrad in lateral view. Paramere apically somewhat truncate, with 7 sensilla. Aedeagal basal process about 1/2 length of paramere.
Female terminalia (Fig. 40 G, H; Pl. 7G): Oviscapt valve yellowish brown, gently curved on dorsosubapical margin in lateral view, with 4 lateral ovisensilla and ca. 13 ventral ones arranged entirely at nearly equal intervals. Spermathecal capsule brown; introvert depth of duct about 5/6 of capsule height.
Measurements: BL = 2.25 (4♂ paratypes: 1.90−2.43, 3♀ paratypes: 2.10−2.50) mm, ThL = 1.11 (0.94−1.08, 1.02−1.17) mm, WL = 2.15 (1.92−2.17, 2.10−2.37) mm, WW = 0.94 (0.82−0.97, 1.02−1.17) mm.
Indices: arb = 2/1 (4♂, 3♀ paratypes: 2/1), FW/HW = 0.45 (0.41−0.45), ch/o = 0.09 (0.08−0.11), prorb = 1.08 (0.98−1.33), rcorb = 0.56 (0.48−0.73), orbito = 1.01 (0.75−1.07), vb = 0.39 (0.35−0.54), dcl = 0.58 (4♂, 2♀ paratypes: 0.44−0.60), dcp = 0.36 (0.31−0.39), sterno = 0.62 (0.57−0.63), m-sterno = 0.76 (3♂, 2♀ paratypes: 0.66−0.77), sctl = 1.00 (4♂, 2♀ paratypes: 0.99−1.07), sctlp = 0.80 (0.84−1.13), C = 3.14 (2.83−3.26), 4c = 0.78 (0.67−0.81), 4v = 1.77 (1.50−1.66), 5x = 1.66 (1.42−1.75), ac = 2.22 (2.11−2.33), M = 0.52 (0.40−0.51), C3F = 0.33 (0.28−0.43).
Holotype. ♂ (#00272), along the way from the seat of Beibeng Town, Motuo County to the Yarang Village, Motuo Town, Motuo County, Linzhi, Xizang, China, 1.x.2010, ex Impatiens? arguta Hook. f. et. Thoms. (Fig. 1 D) J.J. Gao (KIZ).
Paratypes. CHINA: 2♂, 2♀ (#00275, #00682, #00683, #00685), same data as holotype; 2♂, 1♀ (#00306, #00512, #00687), Beibeng, Motuo, Linzhi, Xizang, 29°14′36′′N, 95°10′12′′E, ca. 780 m, 29.ix.2010, ex Impatiens arguta Hook. f. et. Thoms. (Fig. 1 D), J.J. Gao (KIZ, SEHU).
Distribution. China (Xizang).
Etymology. Referring to the somewhat bifurcated (furcatus) tenth sternite (sternum).
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 71-73, DOI: 10.11646/zootaxa.4120.1.1, http://zenodo.org/record/266831