Morphological and molecular evidence of eight new species of the genus Scaptodrosophila Duda (Diptera, Drosophilidae) from China
Author
Peng, Hongen
0000-0001-6862-220X
Department of Entomology, South China Agricultural University, Tianhe, Guangzhou, 510642, China & 2296501581 @ qq. com; https: // orcid. org / 0000 - 0001 - 6862 - 220 X
2296501581@qq.com
Author
Lin, Yong
0000-0003-4723-0762
Department of Entomology, South China Agricultural University, Tianhe, Guangzhou, 510642, China & 123851545 @ qq. com; https: // orcid. org / 0000 - 0003 - 4723 - 0762
123851545@qq.com
Author
Chen, Hongwei
Department of Entomology, South China Agricultural University, Tianhe, Guangzhou, 510642, China
text
Zootaxa
2022
2022-01-26
5093
2
169
194
journal article
2412
10.11646/zootaxa.5093.2.3
9b904267-0c8f-41fc-b984-a93321fd9d61
1175-5326
5905087
F6891A0B-6F0F-4905-A177-0AB491CECD50
Scaptodrosophila melanovittata
sp. nov.
(
Figs 4A–C
,
10
)
Diagnosis.
This
species
resembles
S. trivittata
Liu & Chen,
2018
in the pattern on the abdomen tergites and shape of surstylus, but can be distinguished from it by surstylus grown on outer surfaces of the epandrium (
Fig. 10A, B
); hypandrium shield shaped in ventral view; postgonite weak (
Fig. 10C, D
). This
species
exhibits closest genetic affinity to
S. nigrolimbata
in light of divergence in
COI
barcodes (
Table 2
).
Description.
Head (
Fig. 4A
): Frons dark brown. Pedicel dark brown. First flagellomere grayish, margins black. Facial carina yellowish brown, long, narrow, 1/2 the length of face.
Thorax (
Fig. 4B, C
): Mesonotum yellowish brown. Scutellum yellowish brown. Pleura hazel.
Abdomen (
Fig. 4B, C
): Tergites III to V yellowish brown with black caudal bands, the caudal bands on tergites II to V interrupted medially.
Male terminalia (
Fig. 10A–D
): Epandrium with ca. 13 epandrial bristles near posterior and ventral margins per side. Surstylus with 8 peg-like surstylar teeth on caudal margins (
Fig. 10A, B
). Hypandrium with a pair of paramedian hypandrial bristle. Pregonite with 3 sensilla medially. Phallus lacking pubescence (
Fig. 10C, D
).
Female terminalia (
Fig. 10E
): Oviscapt slightly triangular, expanded subapically. Oviscapt narrow with 1 long subapical trichoid ovisensillum, 17 peg-like ovisensilla per side on ventral margins.
Measurements.
BL =
2.04 mm
in
holotype
(mm in
3♂
and
1♀
paratypes
: 2.00–
2.03 in
♂
,
2.10 in
♀
), ThL =
0.84 mm
(
0.89–0.98 in
♂
,
0.95 in
♀
), WL =
1.96 mm
(
1.82–1.87 in
♂
,
1.94 in
♀
), WW =
0.71 mm
(
0.80–0.82 in
♂
,
0.83 in
♀
), arb = 4/2 (4/2), avd = 0.83 (0.67–0.92), adf = 2.40 (3.00–3.78), flw = 3.20 (3.31–3.75), FW/HW = 0.27 (0.26–0.29), ch/o = 0.08 (0.08–0.09), prorb = 0.89 (0.78–0.82), rcorb = 0.33 (0.27–0.33), vb = 0.60 (0.43–0.60), dcl = 0.46 (0.36–0.44), presctl = 0.46 (0.40–0.44), sctl = 0.78 (0.78–0.91), sterno = 0.32 (0.45–0.55), orbito = 0.50 (0.50–0.60), dcp = 0.28 (0.32–0.38), sctlp = 1.00 (0.90–1.11), C = 5.33 (5.11–5.15), 4c = 0.60 (0.53–0.64), 4v = 1.73 (1.60–1.79), 5x = 1.33 (1.20–1.75), ac = 1.50 (1.50–1.60), M = 0.40 (0.43–0.47), C3F = 0.56 (0.56–0.63).
Materials examined.
Holotype
♂
(
SCAU
, No. 125121),
CHINA
:
Guanlei
,
Mengla
,
Yunnan
,
21°38′N
,
101°10′E
, alt.
621m
,
21.iv.2016
,
J Huang
.
Paratypes
:
CHINA
:
1♂
(
SCAU
,
No.
125122),
Guanlei
,
Mengla
,
Yunnan
,
21°38'N
,
101°10'E
, alt.
621m
,
21.iv.2016
,
J Huang
;
1♂
(
SCAU
,
No.
125120),
Mengdong
,
Cangyuan
,
Yunnan
,
23°10'N
,
99°13'E
, alt.
1323m
,
6.v.2016
,
YQ Liu
;
1♂
(
SCAU
,
No.
125119),
Husa
,
Longchuan
,
Yunnan
,
24°25'N
,
97°46'E
, alt.
1200m
,
20.viii.2016
,
L Gong
;
1♀
(
SCAU
,
No.
125118),
Mengma
,
Menglian
,
Yunnan
,
22°12'N
,
99°22'E
, alt.
1060m
,
14.iv.2018
,
HW Chen
.
Distribution.
China
(
Yunnan
).
Etymology.
A combination of the Greek words “
melas
” + “
vittat
”, referring to the black bands of abdomen.