The genus Leucophenga (Diptera, Drosophilidae), part IV: the ornata species group from the East Asia, with morphological and molecular evidence (II)
Author
Huang, Jia
Author
Li, Tong
Author
Chen, Hongwei
text
Zootaxa
2014
3893
1
1
55
journal article
10.11646/zootaxa.3893.1.1
c3104971-b07a-424c-81e9-ef313376b7d2
1175-5326
287539
D0600C5C-DA06-47C5-80CD-4E625EBC6259
Leucophenga cornuta
sp. nov.
(
Figs 3
E, 8C, 8D, 11E, 15G, 15H, 31)
Diagnosis.
This species is similar to
L
.
quadripunctata
in wing R2+3 vein with a short branch subapically (
Figs 2
H, 3E), but can be distinguished from the latter by having the paramere with an acute projection submedially, and 5 sensilla along apical margin (
Fig. 31
C); epandrium with 13 setae in irregular 2 rows near posterior margin per side (
Fig. 31
A).
Description.
Ocellar triangle brown, with 5 setae above ocellar setae. Frons brownish yellow. Pedicel yellowish brown; first flagellomere yellow. Clypeus brownish yellow. Palpus brownish yellow, yellowish brown at tip. Mesonotum yellowish brown, brown before scutellum (
Fig. 8
C). Postpronotal lobe brownish yellow (
Fig. 8
D). Acrostichal setulae in 12–14 irregular rows (
Fig. 8
C). Scutellum yellowish brown, yellow at tip (
Fig. 8
C). Pleura with an unapparent, brownish, longitudinal stripe above (
Fig. 8
D). Katepisternum and mesopleuron mostly yellowish brown (
Fig. 8
D). Wing (
Fig. 3
E): Costal vein between R2+3 and R4+5 distally with 6–7 peg-like spinules on ventral surface. Halter slightly brownish apically (
Fig. 8
D). Abdominal tergites dark brown, with yellow patches (
Fig. 11
E). Male terminalia: Epandrium mostly pubescent (
Fig. 31
A). Paramere with pubescence subapically and 5 sensilla along apical margin (
Fig. 31
C). Aedeagus thick, with pubescence apically (
Fig. 31
D).
Measurements.
BL =
3.47 mm
in
holotype
, THL =
1.73 mm
, WL =
3.33 mm
, WW =
1.53 mm
, arb = 7/3, avd = 0.79, adf = 1.89, flw = 1.78, FW/HW = 0.41, ch/o = 0.04, prorb = 0.55, rcorb = 0.55, vb = 0.50, dcl = 0.39, presctl = 0.48, sctl = 1.34, sterno = 0.68, orbito = 2.09, dcp = 0.27, sctlp = 1.09, C = 1.89, 4c = 1.75,
4v
= 2.50,
5x
= 1.05, ac = 3.00, M = 0.58, C3F = 0.87.
Type
specimens.
Holotype
♂ (
SCAU
, No. 123244),
CHINA
: Wuliangshan, Jingdong, Yunnan,
1800m
,
4.viii.2006
, ex tree trunk, T Li.
Distribution.
China
(Yunnan).
Etymology.
From the Latin word “
cornutus
” (= horned), referring to the paramere with an acute process.