Ten new species of the Stegana (Steganina) shirozui species group (Diptera, Drosophilidae) from China
Author
Chen, Xi-Peng
Author
Chen, Hong-Wei
text
Zootaxa
2012
3333
24
37
journal article
10.5281/zenodo.215439
f63d615a-0fba-4117-9c9e-d221666c9212
1175-5326
215439
Stegana
(
Steganina
)
danbaensis
sp. nov.
(
Figs 1–6
)
Diagnosis.
This species is related to
S
.
multidentata
from Shennonjia, Hubei, but clearly distinguishable from the latter by the epandrium and aedeagus (in
S
.
multidentata
: epandrium broadened on posterior margins, more wider than 3/5 high; aedeagus distinctly expanded submedially and with rhombic opening in ventral view).
Description.
Male terminalia: Epandrium roundly protruded ventrally, approximately twice as high as wide on posterior margins (
Fig. 1
). Cercus lacking pubescence (
Fig. 2
). Surstylus with 8 prensisetae submedially (
Fig. 2
). Tenth sternite strongly protruded apicolaterally (
Fig. 3
). Paramere with ca. 5–6 sensilla (
Figs 4, 5
). Aedeagus with globular projections bearing finely serrated processes basally (
Figs 4, 5
); nearly oval on opening in ventral view (
Fig. 4
). Gonopods round apically, not protruded dorsomedially (
Fig. 6
).
Measurements.
BL =
2.78 mm
in
holotype
; ThL =
1.68 mm
; WL =
3.15 mm
; WW =
1.51 mm
, arb = 8/5, avd = 0.83, adf = 1.84, flw = 1.87, FW/HW = 0.45, ch/o = 0.16, prorb = 0.83, rcorb = 0.67, vb = 0.41, dcl = 0.46, sctl = 1.40, sterno = 0.90, orbito = 1.80, dcp = 0.25, sctlp = 2.20, C = 2.17, 4c = 1.02,
4v
= 1.66,
5x
= 1.57, ac = 10.50, M = 0.54, C3F = 0.68.
Type
material.
Holotype
3 (
SCAU
, No.
120721
),
CHINA
: Danba, Ganzi, Sichuan, 30˚41' N, 101˚45' E,
2670 m
,
1.ix.2006
, MF Xu.
Distribution.
China
(Sichuan).
Etymology.
In reference to
type
locality, called “hill town” in the Tibetan language.