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 uncinata
Huang & Chen
,
sp. nov.
(
Figs
3
I, 7G, 7H, 9K, 13G, 13H, 32)
Diagnosis.
This species is separated from other species of the
ornata
group by having the aedeagus with 1 hooklike process subapically (
Fig. 32
D), the paramere short and broadened, nearly rectangular (
Fig. 32
C).
FIGURE 32.
Leucophenga uncinata
sp. nov.
,
male terminalia in lateral view: A. epandrium, surstylus and cercus; B. hypandrium, paramere, gonopods, aedeagus and aedeagal apodeme; C. paramere; D. aedeagus. Scale bars = 0.1 mm.
Description.
Ocellar triangle dark brown, with ca. 2–5 setae above ocellar setae. Frons brown. Pedicel yellow; first flagellomere brown. Clypeus dark brown. Mesonotum yellowish brown (
Fig. 7
G). Postpronotal lobe brownish yellow. Acrostichal setulae in ca. 12–15 irregular rows (
Fig. 7
G). Scutellum dark brown, pale at tip (
Fig. 7
G).
Katepisternum yellow, slightly bring brownish (
Fig. 7
H). Meron yellow (
Fig. 7
H). Wing (
Fig.
3
I): Costal vein between R2+3 and R4+5 distally with ca. 6–8 peg-like spinules on ventral surface. Abdominal tergites brown to dark brown (
Fig. 9
K); second yellow medially, with 1 yellow patch laterally; third with a pair of narrow, yellow patches anteriorly; fourth sometimes with a pair of small yellow patches anteriorly; sixth yellow posteriorly. Male terminalia: Epandrium with ca. 14 setae near posterior margin and ventral corner per side (
Fig. 32
A). Hypandrium with 1 small sensillum (
Fig. 32
B). Paramere with pubescence, lacking sensillum (
Fig. 32
C). Aedeagus reticulated, with a small projection medioventrally (
Fig. 32
D).
Measurements.
BL =
3.07 mm
in
holotype
(range in
1♂
and 2♀
paratypes
: 3.00 mm in ♂,
3.04–3.53 mm
in ♀), THL =
1.40 mm
(
1.37 mm
in ♂,
1.40–1.47 mm
in ♀), WL =
2.13 mm
(
2.42 mm
in ♂,
2.43–2.50 mm
in ♀), WW =
0.97 mm
(
1.07 mm
in ♂,
1.13–1.20 mm
in ♀), arb = 8/4 (7–8/4), avd = 0.96 (0.74–0.83), adf = 1.64 (1.71– 2.00), flw = 1.64 (1.50–1.86), FW/HW = 0.38 (0.36–0.38), ch/o = 0.03 (0.02–0.03), prorb = 0.47 (0.54–0.61), rcorb = 0.66 (0.71–0.88), vb = 0.40 (0.40–0.45), dcl = 0.63 (0.44–0.51), presctl = 0.43 (0.47–0.49), sctl = 1.35 (1.21– 1.22), sterno = 0.67 (0.60–0.68), orbito = 2.50 (2.00–2.44), dcp = 0.24 (0.26–0.28), sctlp = 1.08 (1.00–1.15), C = 1.81 (1.80–1.97), 4c = 1.56 (1.47–1.61),
4v
= 1.93 (1.94–2.00),
5x
= 1.08 (0.93–0.94), ac = 3.82 (3.38–4.17), M = 0.52 (0.47–0.53), C3F = 0.83 (0.86–0.88).
Type
Specimens.
Holotype
: ♂ (SCAU, No.
121979
),
CHINA
: Menglun, Mengla, Yunnan, alt.
900m
,
19.iv.2007
, ex tree trunk, HW Chen.
Paratypes
:
CHINA
: 1♀ (SCAU, No.
121980
), same data as
holotype
;
1♂
, 1♀ (SCAU, Nos
121981
,
122899
), Muyiji Park, Ximeng, Yunnan, alt.
1100m
,
4.iv.2011
, ex stone with moss, SJ Yan.
Etymology.
From the Latin word “
uncinatus
” (= hooked), referring to the aedeagus with hook-like process subapically.
Distribution.
China
(Yunnan).