Bandella, A New Hilarine Fly Genus from Australia (Diptera: Empididae)
Author
Bickel, Daniel J.
text
Records of the Australian Museum
2002
54
313
324
journal article
2201-4349
FEA488D9-D30E-4323-9A43-60EADFFBE8CB
Bandella noorinbee
n.sp.
Figs. 2d, 2e
,
3e, 3f
Type material
.
HOLOTYPE
3,
PARATYPES
23,
11♀
,
Victoria
:
Noorinbee
,
12.xi.1969
,
A. Neboiss
(all
MVM
)
.
Additional material
.
New South Wales
: 33,
6.4 km
N of Batemans Bay
,
14.x.1952
,
22.x.1952
,
14.x.1959
;
3,
Macquarie Falls
,
14.xi.1960
,
2♀
,
Warrell Creek
,
11.x.1962
(
ANIC
). 3,
Mt Royal SF
, nr
Pieries Ridge
,
600–700 m
,
15.xi.1986
;
♀
,
30 km
N of Taree
,
23.xi.1985
(
AMS
); 3,
Royal
NP,
Couranga Trail
,
7.xi.1993
(
CNC
)
.
Description
(male): length: 7.2–7.3; wing: 5.0×1.5.
Head
: post-cranium, vertex and frons shining black with no pruinosity; ventral postcranium with scattered pale setae; postorbitals reduced to short hairs, white ventrally, black dorsally; face covered with silvery pruinosity; labrum yellowish with dark brown base and apex, labellum black; antenna black brown; scape and pedicel setose.
Thorax
: pleura and humeral areas of mesonotum redyellow; mesonotum mostly black posteriorly, narrowing step like anteriorly, to become black stripe over ac band and pronotum (
Fig. 2d
); scutellum black; postnotum black but covered with grey pruinosity; setulae pale; scutellum with pair short median marginal setae, and with some adjacent short setae.
Legs
: coxae yellow; trochanters and remainder of legs dark brown to black; coxae with only short pale vestiture, no strong setae; all tarsi with strong black claws and large yellowish pulvilli; I: 6.7; 7.0; 3.6/ 1.2/ 1.0/ 0.9/ 0.8; FI and TI mostly with short vestiture; TI without anteroapical comb; TI, It
1
, and It
2
each with 2 pairs of av-pv setae, and It
3
each with single pair of av-pv setae; II: 6.7; 7.0; 3.0/ 1.4/ 1.0/ 0.9/ 0.7; TII with pair strong apical av-pv setae setae; each tarsomere IIt
1–3
with apical av-pv setae; IIt
1
with black ventral pile; remainder of tarsus II with dense pale ventral pile; III: 11.0; 10.0; 3.0/ 1.3/ 1.0/ 0.8/ 0.8; FIII gradually expanding apically, and weakly clavate in distal third; TIII without strong setae; IIIt with short black vestiture.
Abdomen
entirely shining black, with metallic blue-violet reflections; without pruinosity; tergum 7 with distal U-
in October and November. This species shows strong sexual dimorphism in mesonotal pattern: males have an extensive black area (
Fig. 2d
), whereas females have an entirely yellow mesonotum (
Fig. 2e
).