1218 
DIPTERA OF AUSTRALIA, 
the rest transversely, the terminal segment only slightly ; ovipositor 
sordid ochraceous. Coxie and femora pale yellowish, the fore 
coxie pubescent in fi’ont, all the coxie setose at the apex, the inter- 
mediate and hind pair slightly tinged with brown at the apex ; 
hind femora with a brown longitudinal spot near the base beneath ; 
tibiie almost cinereous; tarsi, tibial spurs and spines almost fuli- 
ginous. In the fore-lescs the tarsi rather more than twice the 
length of the tibife ; the latter about the length of the metatarsms. 
Wings almost hyaline, brilliantly iridescent ; costal and first two 
longitudinal veins dusky brown, the rest yellowish-brown. First 
longitudinal vein joining the costa somewhat before the tip of the 
posterior branch of the third longitudinal vein ; both branches of 
the third longitudinal vein, and the anterior branch of the fourth 
longitudinal, indistinct at the tips ; tips of the branches of the 
fourth longitudinal as widely separated as tho.se of the third lon- 
gitudinal vein ; fifth longitudinal vein terminating a little before 
the base of the second posterior cell. 
Ifab . — Sydney (Masters and Skuse). 
171. Brachydicbaxia fumosa, sp.n. (PI. xxxii. fig. 16). 
— Length of antennie O'OoS inch 
Expanse of wings 0’115x0’040 ... 
Size of body 0-120 x 0-020 ... 
9 . — Length of antennae 0-055 inch 
Expanse of wing.s 0-120x0-042 ... 
Size of body 0-130 x 0-025 ... 
1 - 39 millimetres. 
2- 92 X 1-01 
3- 04 X 0-50 
1-39 millimetres. 
3.04 X 1-06 
3-30x0-62 
and 9 . — Antennae slender, rather longer than the head and 
thorax taken together ; joints of the scapus ochraceous ; flagellar 
joints brown, the very den.se short pubescence with a hoary 
reflection. Front and vertex deep brown, densely covered with 
a minute golden-yellow pubescence Hypostoma brown or 
ochraceous-brown ; palpi ochraceous. Thorax deep brown, denselv 
covered with a minute golden-yellow pubescence, with three 
indistinct longitudinal single rows of short black hairs, the lateral 
ones meeting at the scutellum, the intermediate one not reaching 
