Impatiophila pulla 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 : 62-63

28) Impatiophila pulla Fu & Gao , sp. nov.

( Fig. 34 ; Pl. 3G)

Diagnosis. Abdominal tergites entirely black (Pl. 3G). Labellum with 6 pseudotracheae per side. Tenth sternite broader than long, nearly parallel-sided, with W-shaped notch medially on dorsal margin ( Fig. 34 D). Paramere not longer than twice of width in lateral view ( Fig. 34 E).

Description (♂). Head: Cibarium with 2−3 medial and 3−4 posterior sensilla per side.

Thorax (Pl. 3G): Postpronotum blackish brown; scutum and scutellum black; pleura brown to blackish brown.

Wing (Pl. 3G) pale brown; veins brown. C1 setae 2, subequal. Haltere pale yellow.

Leg (Pl. 3G) yellowish brown. Hindleg tarsomere I with 2 black, apically blunt, stout spines at outer apex on underside.

Abdomen: Sternites grayish yellow.

Male terminalia ( Fig. 34 A −F). Epandrium pubescent on posterior portion of dorsal 3/4, ventrally with ca. 18 setae: caudoventral ones shorter and more densely distributed. Surstylus with 1 long, thick setae in addition to 1 stout, upturned prensiseta on dorsal margin and 6 prensisetae along distal margin. Cercus pubescent in patches on anteromedial portion, with ca. 21 long setae. Hypandrium somewhat obovate. Gonopod rounded on dorsal margin, apically beak-like narrowing in lateral view. Paramere caudoventrally rounded, with 6 sensilla. Aedeagal basal process about 1/2 length of paramere.

Measurements: BL = 1.91 mm, ThL = 0.88 mm, WL = 1.95 mm, WW = 0.82 mm.

Indices: arb = 2/1, FW/HW = 0.47, ch/o = 0.09, prorb = 1.03, rcorb = 0.47, orbito = 1.07, vb = 0.42, dcl = 0.49, dcp = 0.40, sterno = 0.53, m-sterno = 0.61, sctl = 1.04, sctlp = 0.97, C = 2.28, 4c = 0.94, 4v = 1.71, 5x = 1.46, ac = 2.49, M = 0.43, C3F = 0.39.

Holotype. ♂ (#01126), Hesong Village, Xiding Town, Menghai County, Xishuangbanna District, Yunnan, China, 21°49′57′′N, 100°06′09′′E, 17.iv.2010, by net sweeping above fallen trunks along waterside, J.J. Gao ( KIZ).

Distribution. China (Yunnan).

Etymology. Referring to the blackish (pullus) body color.

Remarks. This species known only for male can not be morphologically distinguished from I. unicolorata sp. nov. known only for female.

Figures

FIGURE 34. Impatiophila pulla Fu & Gao, sp. nov. Adult male (holotype, # 01126): 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).