Nine new species of the subgenus Stegana (Steganina) from China, with DNA barcoding information (Diptera: Drosophilidae)
Author
Li, Bingxue
Author
Zhang, Yuan
Author
Chen, Hongwei
text
Zootaxa
2019
2019-04-01
4576
1
81
108
journal article
27521
10.11646/zootaxa.4576.1.4
a169fa80-80f0-4792-8a01-69b3bac059db
1175-5326
2624686
A521DFD3-564F-4A15-8F59-9E946F169C4A
Stegana
(
Steganina
)
latitabula
sp. nov.
(
Figs 2B
,
5
)
Diagnosis.
Surstylus broadened and short (
Fig. 5A, B
); aedeagus nearly round apically (
Fig. 5C
); gonopods semicircular and broadened laterally in ventral view (
Fig. 5E
). The minimum interspecific genetic distance to
S. pililobosa
is 8.3%, which is smaller than to other species (
Table 2
).
Description.
Male: Frons brown, with 1 black band below. First flagellomere yellow, black at apical margin. Clypeus and palpus yellow. Mesonotum brownish to brown, with 3 pairs of yellow longitudinal stripes sublaterally (
Fig. 2B
). Katepisternum white (
Fig. 2B
). Scutellum brown (
Fig. 2B
). Femur of foreleg with 3 long erect setae near distal part of posteroventral surface. Abdominal tergites dark brown medially, brownish laterally (
Fig. 2B
). Male terminalia (
Fig. 5
): Epandrium protruded ventrally, with ca. 28 setae on posterior portion per side. Surstylus with several setulae distally. Cercus lacking pubescence. Paramere with 2 setulae. Tenth sternite inverted triangular per side.
Measurements.
BL =
3.01 mm
in
holotype
, ThL =
1.41 mm
, WL =
2.95 mm
, WW =
1.23 mm
, arb = 6/4, avd = 0.63, adf = 1.20, flw = 1.76, FW/HW = 0.40, ch/o = 0.20, prorb = 0.73, rcorb = 0.70, vb = 0.51, dc1 = 0.47, presct1 = 0.54, sct1 = 0.90, sterno = damaged, orbito = 1.76, dcp = 0.28, sct1p = 1.67, C = 1.88, 4c = 1.11,
4v
= 1.67,
5x
= 1.29, ac = 9.33, M = 0.49, C3F = 0.63.
Specimens examined.
Holotype
♂
(
SCAU
, No.
110945
),
China
:
Pangquangou
,
Jiaocheng
,
Shanxi
,
37°04'47''N
,
111°30'20''E
, altitude
2200m
,
30.vii.2016
, tree trunk,
YL Wang.
Etymology.
A combination of the Latin words:
latus
and
tabula
, reference to the surstylus broadened distally.