Stegana ornatipes species group from the Oriental Region (Diptera: Drosophilidae)
Author
Cheng, Yu
Department of Entomology, South China Agricultural University, Tianhe, Guangzhou, 510642 P. R. China.
Author
Gao, Jian-Jun
Laboratory for Conservation and Utilization of Bio-resource, Yunnan University, Cuihubeilu, Kunming, 650091 P. R. China
Author
Chen, Hong-Wei
Department of Entomology, South China Agricultural University, Tianhe, Guangzhou, 510642 P. R. China.
text
Zootaxa
2009
2009-09-01
2216
1
37
48
https://biotaxa.org/Zootaxa/article/view/zootaxa.2216.1.3
journal article
10.11646/zootaxa.2216.1.3
1175-5326
5321864
Stegana
(
Steganina
)
zhaofengi
sp. nov.
(Figs 27–30)
Specimens examined.
Holotype
:
♂
(
SCAU
, No. 120657),
CHINA
:
Mengla
,
Xishuangbanna
,
Yunnan
,
600 m
,
ex
tussock,
23.iv.2007
,
JJ Gao
.
Paratypes
:
CHINA
:
6♂
6♀
(
2♂
2♀
in
KIZ
;
2♂
2♀
in
SCAU
, Nos 120658-65), same data as holotype,
21–24.iv.2007
,
HW Chen
,
JJ Gao
;
2♂
1♀
(
SEHU
),
Menglun
,
Xishuangbanna
,
Yunnan
,
800 m
,
ex
tussock,
17.iv.2007
,
JJ Gao
,
F Zhao
.
Diagnosis.
Aedeagus composed of 2 pairs of rod-like processes, and with 4 strongly sclerotized projections on each side and several arista-like spinule (Fig. 30).
Description.
Male and female: Pedicel brown; first flagellomere black. Palpus yellow basal 1/3, black distal 2/3. Katepisternum brown on upper 2/3, yellow on lower 1/3. Legs brown, white on basal part of fore femur and all knee joints, yellow on 2nd to 5th tarsomeres of all legs. Sternites brown. Male terminalia: Epandrium with approximately 14 setae near posterior to ventral margin on each body-side (Fig. 27). Cercus with sporadic pubescence dorsally (Fig. 27). Plate between hypandrium and aedeagus lacking pubescence (Fig. 30).
Measurements.
BL =
2.38 mm
in
holotype
(range in
4♂
5♀
paratypes
:
2.25–2.31 mm
in
♂
,
2.06–2.78 mm
in
♀
); ThL =
1.19 mm
(
1.09–1.13 mm
in
♂
, 1.00–
1.34 mm
in
♀
); WL =
1.92 mm
(
1.76–1.90 mm
in
♂
,
1.78–2.33 mm
in
♀
); WW =
1.08 mm
(
1.02–1.04 mm
in
♂
,
0.96–1.28 mm
in
♀
). Indices: arb = 8/7 (7–9/6–8), avd = 0.73 (0.76–0.87), adf = 1.36 (1.18–1.64), flw = 2.00 (1.82–2.00), FW/HW = 0.37 (0.35–0.40), ch/o = 0.08 (0.08–0.09), prorb = 1.05 (1.08–1.21), rcorb = 0.71 (0.75–0.89), vb = 0.30 (0.22–0.32), dcl = 0.41 (0.39– 0.53), presctl = 0.59 (0.47–0.72), sctl = 1.56 (1.52–1.61), sterno = 0.84 (0.76–0.94), orbito = 2.29 (2.00–2.60), dcp = 0.21 (0.18–0.21), sctlp = 1.11 (1.05–1.20), C = 1.80 (1.69–1.90), 4c = 1.30 (1.20–1.38), 4v = 1.74 (1.58–1.86), 5x = 1.18 (1.08–1.33), ac = 10.00 (7.00–10.00), M = 0.57 (0.50–0.62), C3F = 0.65 (0.62–0.73).
Distribution.
China
(
Yunnan
).
Etymology.
Patronym of the collector Dr. F Zhao (SCAU).