Eleven new species of the Homoneura (Homoneura) beckeri group from Yunnan, China (Diptera, Lauxaniidae)
Author
Li, Wenliang
Author
Yang, Ding
Department of Entomology, China Agricultural University, Beijing 100193, China. E-mail: dyangcau @ yahoo. com. cn & Correspondence author
text
Zootaxa
2012
2012-11-02
3537
1
28
journal article
1175-5326
CDCFD1C2-12A5-447D-98CB-85CC444D3584
Homoneura
(
Homoneura
)
baihualingensis
sp. nov.
(
Figs. 1
,
12
,
23
,
34
,
42–46
)
Diagnosis.
Face with a pair of blackish brown elliptical spots (sometimes two spots confluent) extending to inner margin of parafacial. Wing slightly yellow, with a narrow pale brown stripe on
dm-cu
. Abdominal tergites 1–2 each with a pair of blackish brown lateral bands, tergites 2–6 each with a black median spot, sometimes confluent with blackish brown lateral bands on tergites 3-4, tergites 5–6 each with a pair of blackish brown lateral bands.
Description.
MALE. Body length
3.9–4.3 mm
, wing length
3.7–4.1 mm
. FEMALE. Body length
3.7–4.1 mm
, wing length
3.8–4.2 mm
.
Head (
Fig. 1
) pale yellow. Face with a pair of blackish brown elliptical spots (sometimes spots confluent), extending to inner margin of parafacial. Frons about as long as wide and parallel-sided, with two narrow blackish gray stripes along
or
rows and a narrow brown triangular median stripe extending to ocellar triangle; ocellar triangle grayish black;
oc
strong, about as long as anterior
or
, anterior
or
slightly shorter than posterior
or
. Gena about 1/6 height of eye. Occiput with a wide grayish black stripe confluent with ocellar triangle. Antennal scape and pedicel black, 1st flagellomere brownish except yellow basally; 1st flagellomere 1.8 times longer than high; arista long plumose, blackish brown except brownish basally, with longest hairs longer than height of 1st flagellomere. Proboscis yellowish brown, with yellowish and blackish hairs; palpus pale yellow with blackish hairs.
Thorax (
Fig. 12
) blackish brown with grayish white pruinescence. Mesoscutum with white pruinescence on anterior margin, 0+3
dc
(anterior
dc
clearly behind transverse scutal suture),
acr
in 8 somewhat irregular rows. Anepisternum and katepisternum pale yellow with whitish gray pruinescence, and each with a grayish black spot. Scutellum brownish black except yellow along apical margin, with yellowish gray pruinescence. Legs pale yellow, but all tarsi dark yellow, except tarsomere 5 brown on apical half; hind tibia with an incomplete brown basal ring. Fore femur with 4 strong
pv
and 5–6
pd
, ctenidium with 9–10 short bristles; fore tibia with 1 long preapical
ad
and 1 short
apv
. Mid femur with 6
a
and 1
apv
; mid tibia with 1 strong preapical
ad
and 3 strong
apv
. Hind femur with 1 preapical
ad
; hind tibia with 1 weak preapical
ad
and 1 short
apv
. Wing (
Fig. 23
) slightly yellow, with a narrow pale brown stripe on
dm-cu
; subcostal cell hyaline; costa with 2nd (between R
1
and R
2+3
), 3rd (between R
2+3
and R
4+5
) and 4th (between R
4+5
and M
1
) sections in proportion of 2.3: 0.6: 0.4;
r-m
at middle of discal cell; ultimate and penultimate sections of M
1
in
proportion of 1.3: 0.9; ultimate section of CuA
1
about 1/6 of penultimate. Halter pale yellow.
FIGURES 1–11.
Head, anterior view. 1.
Homoneura
(
Homoneura
)
baihualingensis
sp. nov.
; 2.
H
. (
H.
)
brevituba
sp. nov.
; 3.
H
. (
H.
)
conica
sp. nov.
; 4.
H
. (
H.
)
cornis
sp. nov.
; 5.
H
. (
H.
)
dulongjiangica
sp. nov.
; 6.
H
. (
H.
)
ensata
sp. nov.
; 7.
H
. (
H.
)
gemmiformis
sp. nov.
; 8.
H
. (
H.
)
latizona
sp. nov.
; 9.
H
. (
H.
)
longiprocessa
sp. nov.
; 10.
H
. (
H.
)
pilifera
sp. nov.
; 11.
H
. (
H.
)
trilineata
sp. nov.
.
FIGURES 12–22.
Thorax, dorsal view. 12.
Homoneura
(
Homoneura
)
baihualingensis
sp. nov.
; 13.
H
. (
H.
)
brevituba
sp. nov.
; 14.
H
. (
H.
)
conica
sp. nov.
; 15.
H
. (
H.
)
cornis
sp. nov.
; 16.
H
. (
H.
)
dulongjiangica
sp. nov.
; 17.
H
. (
H.
)
ensata
sp. nov.
; 18.
H
. (
H.
)
gemmiformis
sp. nov.
; 19.
H
. (
H.
)
latizona
sp. nov.
; 20.
H
. (
H.
)
longiprocessa
sp. nov.
; 21.
H
. (
H.
)
pilifera
sp. nov.
; 22.
H
. (
H.
)
trilineata
sp. nov.
.
FIGURES 23–33.
Wing. 23.
Homoneura
(
Homoneura
)
baihualingensis
sp. nov.
; 24.
H
. (
H.
)
brevituba
sp. nov.
; 25.
H
. (
H.
)
conica
sp. nov.
; 26.
H
. (
H.
)
cornis
sp. nov.
; 27.
H
. (
H.
)
dulongjiangica
sp. nov.
; 28.
H
. (
H.
)
ensata
sp. nov.
; 29.
H
. (
H.
)
gemmiformis
sp. nov.
; 30.
H
. (
H.
)
latizona
sp. nov.
; 31.
H
. (
H.
)
longiprocessa
sp. nov.
; 32.
H
. (
H.
)
pilifera
sp. nov.
; 33.
H
. (
H.
)
trilineata
sp. nov.
.
FIGURES 34–41.
Abdomen, dorsal view. 34.
Homoneura
(
Homoneura
)
baihualingensis
sp. nov.
; 35.
H
. (
H.
)
brevituba
sp. nov.
; 36.
H
. (
H.
)
conica
sp. nov.
; 37.
H
. (
H.
)
cornis
sp. nov.
; 38.
H
. (
H.
)
ensata
sp. nov.
; 39.
H
. (
H.
)
latizona
sp. nov.
; 40.
H
. (
H.
)
longiprocessa
sp. nov.
; 41.
H
. (
H.
)
pilifera
sp. nov.
.
FIGURES 42–46.
Homoneura
(
Homoneura
)
baihualingensis
sp. nov.
Male. 42. protandrium and epandrium, lateral view; 43. epandrial complex, posterior view; 44. protandrium, anterior view; 45. aedeagal complex, ventral view; 46. aedeagal complex, lateral view. Scale 1 mm.
Abdomen (
Fig. 34
) yellow with sparse silvery white pruinescence; tergites 1–2 each with a pair of blackish brown lateral bands, tergites 2–6 each with a black median spot, sometimes confluent with blackish brown lateral bands on tergites 3-4, tergites 5–6 each with a pair of blackish brown lateral bands. Male genitalia (
Figs. 42–46
): protandrium circular, with a long narrow ventral process; epandrium nearly oblong in lateral view, surstylus consisting of a digitiform process and a narrow curved bar-like process; hypandrium with a pair of long narrow ventral processes, hypandrial apodeme distinct; gonopod columniform and slightly curved; aedeagus without apical incision, dorsal sclerites confluent at dorsal view, with a pair of lateral median teeth and a pair of lateral median processes.
Type material.
Holotype
♂
(
CAU
),
CHINA
,
Yunnan Province
:
Baoshan
,
Baihualing
,
Wenquan
,
29. V. 2007
,
Xingyue Liu
.
Paratypes
:
CHINA
,
Yunnan Province
:
1 ♂
,
3 ♀
(
CAU
), data same as holotype
;
4 ♂
,
3 ♀
(
CAU
), Baoshan, Baihualing, Wenquan,
23.
V
. 2006
, Xingyue Liu
;
2 ♂
,
2 ♀
(
CAU
), Baoshan, Baihualing, Wenquan,
23.
V
. 2006
, Yajun Zhu
;
1 ♀
(
CAU
), Nujiang, Gongshan, Dimaluo,
19.
V
. 2007
, Xingyue Liu
;
1 ♂
(
CAU
), Nujiang, Gongshan, Bingzhongluo, Wuli,
25.
V
. 2007
, Xingyue Liu
.
Distribution.
China
(
Yunnan
).
Remarks.
The new species is somewhat similar to
Homoneura
(
Homoneura
)
latissima
Shi & Yang
from
China
(
Hainan
) in the following characters: wing with a pale brown stripe on
dm-cu
, abdominal tergite 6 yellow with a small brown median spot; protandrium circular, with a long narrow ventral process; surstylus consisting of digitiform process and a narrow curved bar-like process; gonopod columniform. But it can be separated from the latter by the following features: face with a pair of blackish brown elliptical median spots (sometimes two spots confluent); antennal scape and pedicel black, 1st flagellomere brownish except yellow basally; aedeagus without apical incision and apical processes. In
H
.
(
H
.)
latissima
, the face has no spots; the antenna is blackish brown except the 1st flagellomere is pale yellow apically; the aedeagus has a small apical incision and two pairs of contorted apical processes (Shi & Yang 2009).
Etymology.
The new species is named after the
type
locality Baihualing.