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 curvata
sp. nov.
(
Figs 5D–F
,
13
)
Diagnosis.
Body yellowish brown (
Fig. 5E, F
); arista with five dorsal and four ventral branches in addition to terminal bifurcation (
Fig. 5D
); hypandrium triangle shaped in ventral view; phallapodeme curved in lateral view (
Fig. 13C, D
). This
species
exhibits the closest genetic affinity to
S. latifoliacea
sp. nov.
in light of divergence in
COI
barcodes (
Table 2
), but morphologically somewhat conflict with the diagnostic characters of the
coracina
species
group.
Description.
Head (
Fig. 5D
): Frons brown. Pedicel yellowish brown. First flagellomere grayish. Facial carina brown, short, 1/3 the length of face.
Thorax (
Fig. 5E, F
): Mesonotum yellow. Acrostichal setulae in ca. ten regular rows. Scutellum yellow. Pleura beige.
Abdomen (
Fig. 5E, F
): Tergites II to V yellow with black caudal bands, the caudal bands on tergites II to V interrupted medially.
Male terminalia (
Fig. 13
): Epandrium with ca. 12 epandrial bristles near posterior and ventral margins per side. Surstylus with 8 peg-like surstylar teeth (
Fig. 13A, B
). Hypandrium with a pair of paramedian hypandrial bristle. Pregonite with 3 sensilla medially. Phallus lacking pubescence (
Fig. 13C, D
).
Measurements.
BL =
2.58 mm
in
holotype
(mm in
5♂
paratypes
: 2.80–3.42), ThL =
0.87 mm
(0.84–0.96), WL =
2.67 mm
(2.58–2.89), WW =
1.09 mm
(1.08–1.11), arb = 5/4 (5/4), avd = 0.94 (0.69–1.14), adf = 3.14 (2.80–3.20), flw = 2.75 (2.17–2.60), FW/HW = 0.36 (0.34–0.39), ch/o = 0.10 (0.09–0.13), prorb = 0.75 (0.50–0.87), rcorb = 0.36 (0.24–0.33), vb = 0.48 (0.32–0.51), dcl = 0.77 (0.47–0.48), presctl = 0.53 (0.52–0.52), sctl = 0.97 (0.73–0.97), sterno = 0.68 (0.68–0.74), orbito = 0.51 (0.36–0.41), dcp = 0.23 (0.21–0.31), sctlp = 0.94 (0.85–2.13), C = 2.91 (2.70–3.40), 4c = 0.88 (0.73–1.00), 4v = 1.60 (1.42–1.73), 5x = 0.88 (1.07–1.14), ac = 3.14 (2.11–3.29), M = 0.28 (0.63–1.14), C3F = 0.86 (0.83–0.90).
Materials examined.
Holotype
♂
(
SCAU
, No. 125126),
CHINA
:
Mengma
,
Menglian
,
Yunnan
,
22°12'N
,
99°22'E
, alt.
1050m
,
14.iv.2018
,
HW Chen
.
Paratypes
:
CHINA
:
3♂
(
SCAU
, Nos. 125127, 125128, 125130),
Mengma
,
Menglian
,
Yunnan
,
22°12'N
,
99°22'E
, alt.
1050m
,
14.iv.2018
,
HW Chen
;
1♂
(
SCAU
, No. 125131),
Moli Forest
Park
,
Ruili
,
Yunnan
,
24°07'N
,
97°58'E
, alt.
922m
,
23.iv.2018
,
HW Chen
;
1♂
(
SCAU
, No. 125129),
Mengyuan
,
Mengla
,
Yunnan
,
21°47'N
,
101°22'E
, alt.
876m
,
18.xii.2017
,
HW Chen
.
Distribution.
China
(
Yunnan
)
Etymology.
From the Latin words “
curvi
”, referring to the phallapodeme curved in lateral view.