A new genus of anthophilous drosophilids, Impatiophila (Diptera, Drosophilidae): morphology, DNA barcoding and molecular phylogeny, with descriptions of thirty-nine new species
Author
Fu, Zhao
Author
Toda, Masanori J.
Author
Li, Nan-Nan
Author
Zhang, Ya-Ping
Author
Gao, Jian-Jun
text
Zootaxa
2016
4120
1
1
100
journal article
38932
10.11646/zootaxa.4120.1.1
606b81b7-45af-4821-a885-ebf237fd4cc4
1175-5326
266831
EC979B80-9468-4E56-B5C0-90A7F1C78CB3
21)
Impatiophila latipennata
Fu & Gao
,
sp. nov.
(
Fig. 31
; Pl. 3D; Pl. 6S)
Diagnosis.
Heavy, peg-like setae of middle row on 2nd costal section interspersed with weak, trichoid ones. Hindleg tibia with 1 black, apically blunt, stout spine at outer apex on underside. Epandrium deeply concaved on lower caudal margin, resulting in prominent caudoventral lobe (
Fig. 31
A). Tenth sternite somewhat cordiform, with deep, narrow, V-shaped, median notch on dorsal margin (
Fig. 31
D).
Description
(♂, ♀). Head: Cibarium with 2 medial and 6 posterior sensilla per side.
Thorax (Pl. 3D): Postpronotum, scutum and scutellum glossy black; pleura blackish brown to black.
Wing (Pl. 3D) pale brown; veins dark brown. C1 setae 2, ventral one shorter and thinner. Haltere grayish yellow.
Legs (Pl. 3D) yellowish brown.
Abdomen (Pl. 3D): Tergites glossy black. Sternites grayish brown; male VI posteriorly wider, concave on posterior margin.
Male terminalia (
Fig. 31
A −F): Epandrium pubescent posteriorly on dorsal 1/2, ventrally with ca. 10 setae; caudoventral lobe with ca. 13 setae. Surstylus with 2 setae in addition to 1 stout, upturned prensiseta around caudodorsal corner, 7 apically converging prensisetae along distal margin and 3 short setae near ventral apex. Cercus sparsely pubescent on anteromedial portion, with ca. 20 long setae. Hypandrium nearly parallel-sided, roundish on anterior margin. Gonopod apically somewhat acutely projected. Paramere not longer than twice of width, with 7sensilla. Aedeagal basal process about 2/3 length of paramere.
Female terminalia (
Fig. 31
G, H; Pl. 6S): Oviscapt valve brown, gently curved on dorsosubapical margin and strongly expanded dorsomedially in lateral view, with 3−4 dorsal ovisensilla, 11−12 lateral ones on slightly convex (in ventral view) margin of apicolateral flap and 9−11 distally slightly increasing in size on convex, ventral margin; apicolateral flap well developed, turnup in lateral view. Spermathecal capsule brown; introvert depth of duct about 1/2 of capsule height.
FIGURE 31.
Impatiophila latipennata
Fu & Gao
,
sp. nov.
Adult male (paratype, #00608) and female (paratype, #00378): 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).
Measurements: BL = 2.21 (
1♂
paratype
: 1.80, 3♀
paratypes
: 1.77−2.45) mm, ThL = 0.87 (0.80, 0.68−1.10) mm, WL = 1.93 (1.80, 1.58−2.26) mm, WW = 0.88 (0.83, 0.70−0.98) mm.
Indices: arb = 2/1 (
1♂
, 3♀
paratypes
: 2−3/1), FW/HW = 0.49 (0.44−0.52), ch/o = 0.10 (0.07−0.14), prorb = 0.90 (0.92−1.11), rcorb = 0.65 (0.68−0.78), orbito = 0.85 (0.91−1.08), vb = 0.39 (0.40−0.46), dcl = 0.57 (0.37−0.60), dcp = 0.38 (0.34−0.42), sterno = 0.70 (0.64−0.73), m-sterno = 0.79 (0.55−0.77), sctl = 1.00 (1.02−1.17), sctlp = 0.92 (0.92−1.15), C = 2.47 (2.06−2.73), 4c = 0.83 (0.82−1.00),
4v
= 1.52 (1.61−1.70),
5x
= 1.53 (1.42−1.79), ac = 2.55 (2.35−2.99), M = 0.44 (0.45−0.53).
Holotype
. ♂ (#00604), Beibeng Town, Motuo County, Linzhi District, Xizang,
China
,
27.IX.2010
,
ex
Impatiens
sp.9 (with yellow flowers), J.J. Gao (
KIZ
).
Paratypes
.
CHINA
:
1♂
, 1♀ (#00378, #00608), same data as
holotype
; 2♀ (#01200, #01524), along the way from Yarang, Motuo Town to the county seat of Motuo County,
1.x.2010
,
ex
Impatiens siculifer
Hook.
f. (
Fig. 1
H), J.J. Gao (
KIZ
).
Distribution
.
China
(Xizang).
Etymology
. Referring to the broad (
latus
), pinnate (
pennatus
), apicolateral flap of oviscapt valve.