The genus Leucophenga (Diptera, Drosophilidae), part IV: the ornata species group from the East Asia, with morphological and molecular evidence (II)
Author
Huang, Jia
Author
Li, Tong
Author
Chen, Hongwei
text
Zootaxa
2014
3893
1
1
55
journal article
10.11646/zootaxa.3893.1.1
c3104971-b07a-424c-81e9-ef313376b7d2
1175-5326
287539
D0600C5C-DA06-47C5-80CD-4E625EBC6259
Leucophenga securis
sp. nov.
(
Figs 4
A, 9E, 9F, 12C, 16G, 16H, 36)
Diagnosis.
This species is somewhat similar to
L
.
retihirta
sp. nov.
in the patterns of wing and abdominal tergites, and aedeagus reticulated (
Figs 4
A, 12C; see upper that species); but can be distinguished from the latter by having the paramere shape and pubescent mediodorsally (
Fig. 36
C); aedeagus dorsad protruded subbasally, with pubescence distoventrally (
Fig. 36
D).
Description.
Ocellar triangle brown, with 3–6 setae above ocellar setae. Frons brownish to yellowish brown. Pedicel yellowish brown; first flagellomere brownish. Clypeus yellowish brown. Palpus brownish yellow. Mesonotum yellowish brown medially, brown posteromedially and laterally (
Fig. 9
E). Postpronotal lobe yellow (
Fig. 9
F). Acrostichal setulae in 12–14 irregular rows (
Fig. 9
E). Scutellum yellowish brown, sometimes pale at tip (
Fig. 9
E). Pleura with an unconspicuous, brown, longitudinal stripe above (
Fig. 9
E). Katepisternum and mesopleuron mostly brownish yellow (
Fig. 9
F). Wing (
Fig. 4
A): Costal vein between R2+3 and R4+5 distally with 5–8 peg-like spinules on ventral surface. Mid and hindlegs brown on knees. Abdominal tergites dark brown, with yellow patches (
Fig. 12
C). Male terminalia: Epandrium with pubescence and 5 setae near posterior margin per side (
Fig. 36
A). Paramere with 16 sensilla dorstodistally (
Fig. 36
C).
Measurements.
BL =
4.33 mm
in
holotype
(range in
4♂
and 5♀
paratypes
:
3.40–4.40 mm
in ♂, 3.33–4.00 mm in ♀), THL =
2.07 mm
(1.60–2.00 mm in ♂,
1.60–1.93 mm
in ♀), WL =
3.83 mm
(
3.17–3.73 mm
in ♂,
2.77–3.40 mm
in ♀), WW =
1.67 mm
(
1.37–1.73 mm
in ♂,
1.27–1.53 mm
in ♀), arb = 7/3 (6–7/3), avd = 0.93 (0.74–1.00), adf = 1.58 (1.40–1.84), flw = 1.89 (1.50–1.89), FW/HW = 0.39 (0.34–0.42), ch/o = 0.04 (0.04–0.05), prorb = 0.58 (0.49–0.62), rcorb = 0.65 (0.55–0.75), vb = 0.33 (0.23–0.48), dcl = 0.45 (0.42–0.51), presctl = 0.60 (0.45–0.65), sctl = 1.24 (1.17–1.63), sterno = 0.75 (0.71–0.84), orbito = 1.85 (1.83–2.27), dcp = 0.23 (0.24–0.34), sctlp = 1.10 (0.94–1.29), C = 2.00 (1.81–2.10), 4c = 1.59 (1.45–1.76),
4v
= 2.24 (1.83–2.47),
5x
= 0.92 (0.85–1.10), ac = 2.71 (2.42–3.00), M = 0.59 (0.50–0.64), C3F = 0.88 (0.85–0.92).
Type
specimens.
Holotype
♂ (
SCAU
, No.
123164
),
CHINA
: Shennongjia, Hubei,
31°29'N
,
110°18'E
,
1720m
,
31.vii.2005
, ex tree trunk, HW Chen.
Paratypes
:
CHINA
: 1♀ (
SCAU
, No.
123165
), same data as
holotype
;
1♂
(
SCAU
, No.
123166
), Foping, Qinling, Shaanxi,
33°33'N
,
104°54'E
,
1400m
,
19.vii.2006
, ex tree trunk, MF Xu; 1♀ (
SCAU
, No.
123167
), Jizushan, Binchuan, Yunnan,
1900m
,
3.vii.2006
, ex tree trunk, T Li;
10♂
, 20♀ (
SCAU
, Nos
123168
–97), Wuliangshan, Jingdong, Yunnan,
1800m
,
4.viii.2006
, ex tree trunks, HL Cao, HZ Cao, T Li;
1♂
(
SCAU
, No. 123299), Yixiang, Puer, Yunnan,
1400m
,
18.x.2012
, ex tree trunk, JJ Gao.
Distribution.
China
(Shaanxi, Hubei, Yunnan).
Etymology.
From the Latin word “
securis
” (= axe), referring to the shape of paramere.