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 tasmanica
n.sp.
Figs. 2j
,
4a
Type material
.
HOLOTYPE
, 3,
Tasmania
:
Pelion Gap
,
2 km
ENE of Mt Ossa
,
41°52'S
146°03'E
,
1120 m
,
7.iii.1991
–
9.iv.1991
,
malaise trap
,
E. Edwards
&
J. Berry
,
ANIC
.
PARATYPES
: 23, same data as holotype; 13,
Pelion Hut
,
3 km
S of Mt Oakleigh
,
41°50'S
146°03'E
,
860 m
,
iii.1991
,
malaise trap
; 13, Pelion Hut
,
same data but
6–11.iii.1991
, pans (all
ANIC
)
.
Additional material
.
Tasmania
:
♀
,
Derwent Bridge
,
12.ii.1967
(
ANIC
)
.
Description
(male): length: 11.0–11.5; wing: 8.0×2.2; similar to
B. duvalli
, except as noted.
Head
also with black hairs on dorsal postcranium, scape and pedicel.
Thorax
: pleura and postnotum black and covered with dense grey pruinosity; anterior mesonotum mostly orange; but with black ac band which continues and is slightly wider across posterior slope to scutellum; large black spot laterad of dc row and posteriad of mesonotal suture, and black pa spot, which is sometimes only weakly developed (
Fig. 2j
); postpronotum and postalar callus pale yellow; scutellum orange but dark brown at base; dc band with short setulae extending to scutellum, and with some short setulae laterally.
Legs
: coxae mostly reddish yellow; but CII and CIII infuscated at very base; trochanters yellow with dark brown apices; all femora and tibiae reddish yellow, except TIII with brown band from
3
5
to
3
4
which varies somewhat in extent; It brownish, IIt mostly yellow, IIIt yellow; coxae with only short pale vestiture, no strong setae; all tarsi curled in repose; It
1–3
each with pairs of ad-pd setae; IIIt
1
ventrally with dense pale pile and some short dark setulae.
Abdomen
: tergum 1 black; segments 2–6 entirely orangeyellow; tergum 8 also with lateral flaplike projections; hypopygium (
Fig. 4a
) mostly yellow except for dark brown apex and edge of hypandrial keel and apices of epandrium and cercus.
Female
. Putative female specimen similar to male except as noted: thoracic pleura with mixed black and yellow patches, and with distal postnotum black; mesonotum entirely orange with only dark brown ac stripe present, thinner than that of male; leg colour similar and TIII also with brown band.
Remarks
.
Bandella tasmanica
is known only from the Central Highlands of
Tasmania
, and most specimens were collected near Mt. Pelion. This species is close to
B. duvalli
, but the two species can be readily separated by the set of diagnostic key characters: the pattern of the mesonotum, and colour of coxae and abdomen. Both species have a similar banded tibia III and have a short flap like tergum 8, that rests against the hypopygium.