The genus Leucophenga (Diptera, Drosophilidae), part II: the ornata species group from East Asia, with morphological and molecular evidence (I)
Author
Huang, Jia
Author
Li, Tong
Author
Gao, Jianjun
Author
Chen, Hongwei
text
Zootaxa
2013
3701
2
101
147
journal article
10.11646/zootaxa.3701.2.1
731510ba-7926-418b-82cd-82e52f3b7439
1175-5326
249340
872A8545-2050-4016-B0EF-03A49F6A8E3F
Leucophenga falcata
Huang & Chen
,
sp. nov.
(
Figs
2
I, 5G, 5H, 8J, 11G, 11H, 22)
Diagnosis.
This species differs from the other species in having the epandrium without setae near ventral corner (
Fig. 22
A); aedeagus broadened and slightly spatulate distally in lateral view (
Fig. 22
D).
Description.
Ocellar triangle dark brown, with ca. 3 setae above ocellar setae. Frons brown. Pedicel yellow; first flagellomere yellowish brown. Clypeus dark brown. Mesonotum mostly yellowish brown, dark brown before scutellum (
Fig. 5
G). Postpronotal lobe slightly yellow. Acrostichal setulae in ca. 14 irregular rows (
Fig. 5
G). Scutellum brown medially, dark brown laterally, pale at tip (
Fig. 5
G). Katepisternum yellow, with brownish patch above (
Fig. 5
H). Meron yellow (
Fig. 5
H). Wing (
Fig.
2
I): Costal vein between R2+3 and R4+5 distally with ca. 6 peg-like spinules on ventral surface. Abdominal tergites brown to dark brown (
Fig. 8
J); second yellow anteriomedially, with a patch near lateral margin; third and fourth each with a pair of narrow, yellow patches submedially along anterior margins; fifth sometimes with a pair of small yellow patches submedially along anterior margin; sixth with narrow, yellow band on posterior margin. Male terminalia: Epandrium with ca. 9 setae near dorsal to posterior margin per side (
Fig. 22
A). Hypandrium lacking sensillum (
Fig. 22
B). Paramere narrow and slightly curved, with ca. 3 sensilla and pubescence distally (
Fig. 22
C).
Measurements.
BL =
3.13 mm
in
holotype
(3.00 mm in 1♀
paratype
), THL =
1.47 mm
(
1.27 mm
), WL =
2.40 mm
(
2.13 mm
), WW =
1.15 mm
(
1.03 mm
), arb = 7/4 (8/4), avd = 0.87 (1.08), adf = 1.88 (1.86), flw = 1.63 (1.86), FW/HW = 0.35 (0.38), ch/o = 0.03 (0.03), prorb = 0.59 (0.50), rcorb = 0.55 (0.70), vb = 0.27 (0.40), dcl = 0.24 (0.45), presctl = 0.37 (0.52), sctl = 1.42 (1.77), sterno = 0.79 (0.83), orbito = 1.60 (2.00), dcp = 0.25 (0.18), sctlp = 1.08 (1.03), C = 1.87 (1.81), 4c = 1.64 (1.62),
4v
= 2.07 (2.08),
5x
= 0.89 (0.93), ac = 3.07 (3.50), M = 0.57 (0.54), C3F = 0.87 (0.90).
Type
specimens.
Holotype
♂ (SCAU, No.
121806
),
CHINA
: Menglun, Mengla, Yunnan, alt.
870m
,
19.iv.2007
, ex tree trunk, HW Chen.
Paratype
:
CHINA
: 1♀ (SCAU, No.
121807
), same data as
holotype
.
Etymology.
From the Latin word “
falcatus
” (= falciform), referring to the paramere shaped.
Distribution.
China
(Yunnan).