Revision of the subgenus Phortica (sensu stricto) (Diptera, Drosophilidae) from East Asia, with assessment of species delimitation using DNA barcodes
Author
Huang, Jia
Author
Gong, Lu
Author
Tsaur, Shun-Chern
Author
Zhu, Lin
Author
An, Keying
Author
Chen, Hongwei
text
Zootaxa
2019
2019-09-30
4678
1
1
75
journal article
25341
10.11646/zootaxa.4678.1.1
96c8a18a-e887-4345-b266-d76076e8416b
1175-5326
3468782
91B46647-B441-41F5-BE27-3A67D699788C
Phortica
(
Phortica
)
liukuni
Gong & Chen
,
sp. nov.
(
Fig. 35
)
Diagnosis.
This species is somewhat similar to
P
.
psi
(
Zhang & Gan, 1986
)
in the male terminalia, but can be distinguished from the latter by having the aedeagal median rod with 1 pair of lobe-like, distally slender but not bifurcated processes submedially (
Fig. 35C
).
Description.
Frons dark black above, brown below. Face brown. Gena and postgena black. Mesoscutum, pleura, and scutellum yellowish brown, with dark brown patches and pollinose pattern. Male terminalia (
Fig. 35
): Epandrium pubescent anteroventrally, with ca. 7 setae on posterolateral portion per side (
Fig. 35A
). Surstylus basally with pubescence on outer surface, with several wedge-like prensisetae on apical margin and inner surface (
Fig. 35B
). Posterolateral lobe of hypandrium undeveloped and lacking pubescence (
Fig. 35C
). Paramere with sparse pubescence subapically; apical process with 1 sensillum and 3 teeth; medial process somewhat triangular; basal process with 1 sensillum (
Fig. 35C
).
Measurements and indices
. BL =
3.20 mm
in
holotype
(range in
3♂
paratypes
: 2.80–3.33), ThL =
1.53 mm
(1.47–1.67), WL =
3.13 mm
(2.13–3.27), WW =
1.13 mm
(1.07–1.27), arb = 3/0 (3–4/0), adf = 1.50 (0.80–1.00), flw = 2.00 (1.40–1.50), FW/HW = 0.38 (0.43–0.50), ch/o = 0.13 (0.09–0.17), prorb = 1.19 (0.80–1.17), rcorb = 0.63 (0.42–0.50), vb = 0.60 (0.50–0.60), dcl = 0.50 (0.44–0.60), presctl = 0.56 (0.44–0.50), sctl = 1.13 (1.07–1.46), sterno = 0.60 (0.67–1.33), orbito = 1.43 (1.10–2.00), dcp = 0.28 (0.21–0.32), sctlp = 0.67 (0.50–0.86), C = 2.10 (1.65–2.23), 4c = 1.40 (1.69–1.82),
4v
= 2.67 (3.31–3.36),
5x
= 1.13 (1.00–1.05), ac = 3.50 (3.14–4.00), M = 0.60 (0.73–0.82), C3F = 0.71 (0.73–0.85).
Type materials.
Holotype
♂
(
SCAU
, No. 124044),
CHINA
:
Mayanghe
,
Yanhe
,
Guizhou
,
28°40'37''N
,
108°19'33''E
, alt.
1100m
,
24.v.2012
,
K. Liu
.
Paratypes
:
3♂
(
SCAU
, Nos. 124045–47), same data as holotype
.
Distribution.
China
(
Guizhou
).
Etymology.
Patronym after the collector Mr. Kun Liu (SCAU).