New black fungus gnats (Diptera: Sciaridae) from Eastern Australia
Author
Mohrig, Werner
Author
Kauschke, Ellen
Author
Broadley, Adam
text
Zootaxa
2018
2018-07-24
4450
2
203
241
journal article
29318
10.11646/zootaxa.4450.2.3
ad05fb6a-3087-433c-a1d7-ef8ab0ab966d
1175-5326
1444654
624934AE-AEF3-4366-81B2-0997054B3DBD
Bradysia fuscovirgata
sp. n.
(
Fig. 9 A–C
)
Type
locality
:
New
South Wales
,
Candelo
(near
Bega
).
Holotype
: Male,
17.–24.xii.1993
,
yellow trap
, leg. A. Kallies (ANIC).
Paratypes
:
3 males
, same locality
,
same data (
2 in
PWMP
,
1 in
PABM
)
.
Description
. Male.
Head.
Brown. Eye bridge 2–3 facets wide. Antenna brownish, surface nearly smooth, scape and pedicel somewhat paler, 4th flagellomere with l/w index of 3.0, hairs dense and as long as the diameter of the basal node; neck rather short, brownish. Palpus 3-segmented, yellowish, basal segment with 2–3 bristles and a flat sensory area.
Thorax.
Yellowish brown. Scutum yellowish with three darker stripes and short, fine and sparse hairs, some lateral bristles longer; scutellum with 2 marginal bristles; postpronotum bare, pleural sclerites yellow, katepisternum darkened at the tip, metanotum distally darkened. Wing slightly brownish; R1 = 2/3 R; R5 without ventral macrotrichia; C = 2/3 w; y = x, without macrotrichia; posterior wing veins without macrotrichia. Haltere short, pale. Coxae and legs yellow; apex of fore tibia with a comb of bristles; spurs of middle and hind tibiae equal in size, longer than the diameter of the apex; claws without teeth.
Abdomen.
Brownish. Hypopygium yellowishbrown, the ventral base and the gonocoxites at the inner ventral margin with rather sparse and short hairs; gonostylus prolonged, weakly bulbous, pointed to the apex and darkened in the distal third; without an apical tooth but with 4 apical spines. Tegmen wider than long, rounded apically, with a large field of fine teeth. Aedeagus rather long. Body length:
2.2 mm
.
FIGURE 9.
Bradysia fuscovirgata
sp. n.
A. Hypopygium; B. FlagEllomErEs 4–5; C. HEaD anD thorax.
Comments
. The species is characterized by the yellow colour of the pleural sclerites, three dark stripes on the scutum, long flagellomeres, a prolonged and bulbous gonostylus without a tooth and with 4 apical spines. It belongs to the
B. hilaris
group, although the necks are not bicoloured.
Distribution
.
Australia
:
New South
Wales
.