Impatiophila pentamaculata 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 : 82-83

41) Impatiophila pentamaculata Fu & Gao , sp. nov.

( Fig. 47 ; Pl. 5D; Pl. 7N)

Diagnosis. Tergites II −VI with broad, blackish brown to black, caudal bands; bands on II −IV medially narrowly interrupted/constricted; band on V medially neither interrupted/constricted nor protruded (Pl. 5C). Thorax maculated by central, broader and 2 lateral, narrower dark, longitudinal stripes on pale brown ground: central stripe running through pronotum and scutum, but lateral stripes shorter, interrupted by transverse suture (Pl. 5D). Hindleg tarsomere I with 2 black, apically blunt, stout spines at outer apex on underside. Tenth sternite longer than wide, distally somewhat roundly dilated, with shallow, median notch on dorsal margin ( Fig. 47 D). Oviscapt valve not dilated subbasally in ventral view, only slightly concave on ventral margin and gently curved on dorsosubapical margin in lateral view, with 4−5 dorsal ovisensilla and 18−19 ventral ones arranged entirely at nearly equal intervals ( Fig. 47 G, H).

Description (♂, ♀). Head: Cibarium with 3−4 medial and 5−6 posterior sensilla per side. Labellum with 6 pseudotracheae per side.

Thorax (Pl. 5D): Postpronotum yellowish brown; scutellum medially blackish brown, marginally yellowish brown; pleura brown to blackish brown.

Wing (Pl. 5D) pale brown. C1 setae 2: ventral one shorter and thinner. Haltere pale yellow.

Legs (Pl. 5D) yellowish brown.

Abdomen: Sternites grayish yellow.

Male terminalia ( Fig. 47 A −F): Epandrium broad, truncate on ventral margin, only very sparsely pubescent, with ca. 15 long setae on ventral half and ca. 18 shorter setae on caudoventral portion. Surstylus with 1 long, thick seta in addition to 2 stout, upturned prensisetae around caudodorsal corner, 7 prensisetae along distal margin and 1 seta at ventral apex. Cercus very sparsely pubescent, with ca. 25 long setae. Hypandrium obovate. Gonopod narrow, protruded ventrad in lateral view. Paramere with 6 sensilla: distalmost one distantly located from others. Aedeagal basal process about 1/2 length of paramere.

Female terminalia ( Fig. 47 G, H; Pl. 7N): Spermathecal capsule brown; introvert depth of duct about 4/5 of capsule height.

Measurements: BL = 2.70 (1♀ paratype: 3.03) mm, ThL = 1.20 (1.32) mm, WL = 2.48 (2.73) mm, WW = 1.10 (1.17) mm.

Indices: arb = 2/1 (1♀ paratype: 2/1), FW/HW = 0.46 (0.47), ch/o = 0.10 (0.12), prorb = 1.10 (1.14), rcorb = 0.52 (0.55), orbito = 0.79 (0.86), vb = 0.44 (0.28), dcl = 0.60 (0.64), dcp = 0.44 (0.36), sterno = 0.59, m-sterno = 0.63, sctl = 0.94 (1.02), sctlp = 0.90 (0.95), C = 2.83 (3.00), 4c = 0.79 (0.69), 4v = 1.66 (1.46), 5x = 1.32 (1.29), ac = 2.21 (2.22), M = 0.40 (0.35), C3F = 0.23 (0.30).

Holotype. ♂ (#02558), Jizushan (Mt. Jizu), Dali, Yunnan, China, 17.viii.2010, H. Watabe, J.G. Xiangyu ( KIZ).

Paratypes. CHINA: 1♂ ( SEHU), 1♀ ( KIZ: #02559), same data as holotype; 2♀, Mt. E’mei, Sichuan, 16, 17.vii.1992, H. Watabe ( SEHU); 1♀, Yangjiangping, Tianpingshan, Hunan, 1.ix.2000, Y.G. Hu ( SEHU).

Distribution. China (Hunan, Sichuan, Yunnan).

Etymolog y. Referring to the five (penta-) dark maculae (maculatus) on the thorax.

Figures

FIGURE 47. Impatiophila pentamaculata Fu & Gao, sp. nov. Adult male (holotype, # 02558) and female (paratype, # 02559): 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).