Ten new species of the subgenus Steganina (Diptera: Drosophilidae: Stegana) from southern China
Author
Wang, Le
Department of Entomology, South China Agricultural University, Guangzhou, China;
Author
Gao, Jian-Jun
Laboratory for Conservation and Utilization of Bio-resources, Yunnan University, Kunming, China
Author
Chen, Hong-Wei
Department of Entomology, South China Agricultural University, Guangzhou, China;
text
Journal of Natural History
2013
J. Nat. Hist.
2013-05-13
47
29 - 30
1993
2013
http://dx.doi.org/10.1080/00222933.2012.763055
journal article
10.1080/00222933.2012.763055
1464-5262
5197221
Stegana
(
Steganina
)
hirticeps
sp. nov.
(
Figure 5
)
Diagnosis
This species is similar to
S. rhomboica
sp. nov.
in the cercus lacking pubescence, the shapes of paramere and aedeagus, can be differentiated from it by having the surstylus with serrated, minute processes on outer surface (
Figure 5A
), the dorsal projection of
Figure 5.
Stegana
(
Steganina
)
hirticeps
sp. nov.
, male terminalia: (A) epandrium, cercus and surstylus; (B) 10th sternite; (C, D) hypandrium, paramere(s), aedeagus and aedeagal apodeme; (E) gonopods. Scale bars: 0.1 mm.
gonopods globosely expanded (
Figure 5D, E
), the aedeagal opening with pubescence medially and apically (
Figure 5C, D
).
Description
Frons dark brown, lacking minute setulae. Fronto-orbital plate yellow above, brown below. Pedicel and first flagellomere mostly brown. Face black on upper two-thirds, yellow on lower margin. Clypeus yellow. Scutum medially brown in male and dark female, laterally yellow. Basisternum yellow. Scutellum brown, sometimes slightly yellow at tip. Wing brown anteriorly, yellowish posteriorly, black on all crossveins. Fore femur with one row of five long, suberect setae on ventral surface. Abdominal tergites dark brown medially, yellow laterally. Sternites brown, slightly wider than length. Male terminalia: surstylus lacking prensiseta (
Figure 5A
). Tenth sternite strongly broadened (
Figure 5B
). Hypandrium roundly expanded anteromedially (
Figure 5C
). Paramere protruded and with one sensillum (
Figure 5C, D
). Aedeagus roundly expanded distally, lacking serrated, minute processes (
Figure 5C, D
).
Measurements
BL =
2.80 mm
in
holotype
(
3.04 in
one ♀
paratype
), ThL =
1.28 mm
(1.36), WL =
2.52 mm
(2.56), WW =
1.24 mm
(1.28), arb = 7
/
5 (6
/
4), avd = 0.80 (1.00), adf = 0.83 (0.80), flw = 2.50 (2.00), FW
/
HW = 0.31 (0.30), ch
/
o = 0.26 (0.31), prorb = 1.08 (1.07), rcorb = 0.67 (0.60), vb = 0.38 (0.50), dcl = 0.29 (0.47), presctl = 0.59 (0.68), sctl = 1.93 (2.00), sterno = 0.65 (0.88), orbito = 1.80 (1.60), dcp = 0.20 (0.21), sctlp = 3.00 (1.70),
C
= 1.78 (2.60), 4c = 1.38 (1.07), 4v = 2.15 (1.86), 5x = 1.33 (1.60), ac = 18.00 (15.00),
M
= 0.62 (0.57), C3F = 0.67 (0.69).
Type material
Holotype
♂
(
SCAU
, No. 121203) and
paratypes
one ♂
,
two ♀
(
SCAU
, No. 121204–06),
CHINA
:
Mount Maoer
,
Guilin
,
Guangxi
,
25
◦
51
′
N
,
110
◦
27
′
E
, altitude
700 m
,
23 October 2004
,
HW Chen.
Etymology
A combination of the Latin words:
hirtus
+
ceps
referring to the aedeagal opening with dense pubescence.
Distribution
China
(
Guangxi
).