A taxonomic revision of the genus Asiobaccha Violovitsh (Diptera: Syrphidae)
Author
Mengual, Ximo
text
Journal of Natural History
2016
2016-07-31
50
2585
2645
journal article
21209
10.1080/00222933.2016.1206634
561159e3-982f-4eb4-8824-5459de071493
1464-5262
3994636
6B627B0F-9440-47F1-90F4-9AF4C7308A99
Asiobaccha virtuosa
(
Curran, 1928
)
comb. nov.
(
Figures 12a, b, d
,
14b
)
Baccha virtuosa
Curran, 1928: 246
.
Lectotype
:
♂
, BMNH, here designated. Type locality:
Malaysia
, Rhododendron Hill.
Curran 1931a: 322
;
Curran 1942: 6
;
Curran 1947: 5
.
Baccha gigas
Curran, 1931b: 356
. Syn. nov.
Curran 1931a: 322
;
Curran 1947: 5
.
Baccha
(
Baccha
)
virtuosa
of
Knutson et al. 1975: 323
.
Baccha
(
Allobaccha
)
gigas
of
Knutson et al. 1975: 322
.
Asiobaccha virtuosa
of
Mengual 2015: 398
(DNA voucher ZFMK_XM224).
Differential diagnosis
This species has the face entirely yellow and the abdomen with yellow markings (
Figure 12a, d
), the alula partly microtrichose, the wing with partly bare basal cells (
Figure 14b
), and a well-defined mesonotal collar. It is similar to
A. nubilipennis
, but
A. virtuosa
has the cell R completely microtrichose and tergum 4 with two subrectangular yellow maculae (
Figures 12a, b
,
14b
).
Figure 12.
Asiobaccha virtuosa
(Curran)
. a–b, d, lectotype ♂. (a) Dorsal view; (b) lateral view; (d) frontal view.
Asiobaccha maculosa
Mengual & Thompson
sp. nov.
, paratype ♀. (c) Dorsal view.
Asiobaccha nubilipennis
(Austen)
, ♀. (e) Frontal view.
Asiobaccha tinctiventris
(Meijere)
, ♂. (f) Frontal view. Scale bars: a–c = 2 mm; d–f = 1 mm.
Figure 13.
Asiobaccha nubilipennis
(Austen)
. a–b, ♂, male genitalia. (a) Lateral view; (b) ventral view.
Asiobaccha taronja
Mengual
sp. nov.
c–d, paratype ♂, male genitalia. (c) Lateral view; (d) ventral view. Scale bars = 0.5 mm.
Length (N = 3).
Body, 11.0
–
14.7 (13.2) mm; wing, 10.5
–
13.0 (11.9) mm.
Geographical distribution
Malay Peninsula,
Sumatra
and Borneo.
Genetics
The GenBank accession numbers for this species are: 28S gene (
KM
270824
, specimen ZFMK_
XM224
), 18S gene (
KM
270772
, specimen ZFMK_
XM224
), COI gene (
KM
270855
, specimen ZFMK_
XM224
).
Type
locality
Malaysia
:
Pahang
,
Cameron
’
s
Highlands
,
Rhododendron Hill
,
04°29
ʹ
N
,
101°22
ʹ
E
.
Figure 14.
Asiobaccha nubilipennis
(Austen)
. (a) Wing.
Asiobaccha virtuosa
(Curran)
. (b) Wing.
Asiobaccha bicolor
(Austen)
. (c) Wing.
Asiobaccha tripartita
(Walker)
. (d) Wing. Images with the microtrichia pattern for each species; the infuscation of the wing membrane is not illustrated.
Material examined
Type material.
Lectotype
, male, deposited in
The Natural History Museum
, formerly
British Museum
(
Natural History
) (
London
,
United Kingdom
), and labelled as indicated below (specimen photographed).
Type material of
Baccha gigas
Curran, 1931
.
Holotype
,
female
, deposited in
The Natural History Museum
, formerly
British Museum
(
Natural History
) (London,
United Kingdom
), and labelled:
‘
Holo- // type
’
[round, red margin]
‘
Baccha
// TYPE //
gigas
♀
//
Curran
. // No.
’
[red]
‘
B.N. BORNEO. //
Mt. Kinabalu
, //
Marei Parei
, //
5,000 ft.
//
30; 4;
1929.
’
[pink]
‘
H.M. Pendlebury
// coll. //
F.M.S. Museums
.
’
[on the reverse of previous label, italics]
‘
Baccha
//
gigas
//
Curran
. // Det. //
C.H. Curran
’ ‘
Pres
. by //
Fed.Malay States
//
Museum
. // B.M.
1934
–
74
.
’
.
Nontype material.
MALAYSIA
:
Pahang
,
Brinchang
,
24 November
–
2 December 1977
, B.
Bendell
[
1♂
,
CNC
];
Pahang
,
Cameron
’
s
Highlands, G
.
Perdah
,
5100 ft.
,
30 April 1941
, J.A.
Reid
[
1♂
,
BMNH
];
Pahang
,
Cameron
’
s
Highlands,
G
.
Terbalvar
,
4481 ft.
,
19 July 1928
, H.M.
Pendlebury
[
1♀
,
BMNH
];
Pahang
,
Cameron
’
s
Highlands
,
4000
–
4500 ft.
,
15 June 1935
, H.M.
Pendlebury
[
1 sp.
,
BMNH
];
Pahang
,
Fraser
’
s
Hill
,
4200 ft.
,
22 July 1936
, H.M.
Pendlebury
[
1♂
1♀
,
BMNH
];...,
15 July 1936
,... [
1♀
,
BMNH
];...,
4000 ft.
,
5 June 1941
,... [
1 sp.
,
BMNH
];...,
2 July 1931
,... [
1♂
,
AMNH
];...,
4000 ft.
,
31 May 1932
,... [
1♂
,
AMNH
];
Perak
,
Larut Hills
,
4500 ft.
,
22 February 1932
, H.M.
Pendlebury
[
1 ♂
,
USNM
,
USNM
ENT 00890806
];...,
3700
–
4500 ft.
,
14
–
15 February 1932
,... [
1♂
,
AMNH
];
Sabah
,
Mt
. Kinabalu,
5000 ft.
,
1
–
5 May 1973
, K.M.
Guichard
[
1♀
,
BMNH
];];
Sabah
,
Mt
. Kinabalu,
Marei Parei
,
5000 ft.
,
29 April 1929
, H.M.
Pendlebury
[
1♀
,
CNC
];
Sabah
,
Penampang District
,
Crocker Range
,
Gunung Alab
,
1660 m
, 05°48
ʹ
47
ʹ
’
N, 116°20
ʹ
16
ʹ
’
E,
16 October 2011
, M.
Hauser
and S.
Gaimari
[
1♀
,
CSCA
;
1♀
,
ZFMK
,
ZFMKDIP 00011954
; DNA voucher
ZFMK
_
XM224
];...,
Long Gong Kugan
,
1630 m
, 05°49
ʹ
44
ʹ
’
N, 116°19
ʹ
37
ʹ
’
E,
22 October 2011
, M.
Hauser
and S.
Gaimari
[
1♀
,
ZFMK
,
ZFMKDIP 00011951
];
Long Pa Sia
to
Long Semado
, kerangas,
1485 m
,
3
–
5 December 1987
, C.v.
Achterberg
,
Malaise
[
1♀
,
RMNH
].
INDONESIA
:
south Sumatra
, SW
Lampong district
,
Mt
. Tanggamoes,
600
–
700 m
,
December 1939
, M.A.
Lieftinck
[
1♀
,
RMNH
]
.
Remarks
Curran (1928)
described
A. virtuosa
from two males collected the same day by H. M. Pendlebury. In BMNH, there is a pinned male labelled:
‘
Fed. Malay States //
Pahang
,
‘
Cameron
’
s //
Highlands
’
Rhododendron // Hill.
5200 ft.
19.VI.1923
. // H. M. Pendlebury
’ ‘
Syn- // type
’
[round, blue margin]
‘Holo
TYPE
♂
//
Baccha
//
virtuosa
//
No Curran’
[red]
‘
Brit. Mus. //
1926
–
56
.
’ ‘
LECTOTYPE
//
Asiobaccha
//
virtuosa
// de
s
. X. Mengual 20
14’
[red; second and third lines handwritten]. This specimen is here designated as
lectotype
to fix and ensure the universal and consistent interpretation of the name.
The
holotype
of
A. virtuosa
has no alula on the right wing and only the basal portion of the alula remains in the left wing.
The
holotype
female of
Baccha gigas
is in poor condition, missing the left wing and most of the abdomen (only terga 1 and 2 remain). The name
Baccha gigas
was introduced in the identification key from
Curran (1931a
, p. 322), and the only difference from
Asiobaccha virtuosa
stated by the same author is the colouration of the wing:
virtuosa
has wings wholly brown, darker in front, while
gigas
has wings dark only in front. The
holotype
of
Baccha gigas
Curran
was studied and was found to be the same species as
Asiobaccha virtuosa
Curran.
Specimens from the collection at RMNH have a manuscript name given by P.H. van Doesburg,
Baccha flavitarsis
, never published; thus, it is not available.