1376 
DIPTERA OF AUSTRALIA, 
Thorax nitidous, with two longitudinal treble or quadruple rows 
of very short blackish hairs from the humeri to the scutellum ; 
pleurse and pectus dull. Halteres long and slender, with a 
minute pubescence. Abdomen somewhat shining, densely pubes- 
cent, more so in the ^ than the 9 j tliG $ about the width of 
the thorax, not twice its length, more robust and rather longer 
in the 9 j $ forceps small ; 9 ovipositor short. I^egs densely 
pubescent, particularly those of the ; tibial spurs black ; 
pulvilli pallid. Wings dark smoky-brown, darker anteriorly, in the 
^ as long as the body, in the 9 longer ; stigma indistinct ; veins 
umber-brown, the costal, auxiliaiy, first and second longitudinal, 
and marginal cross-vein darker than the rest. Costal vein 
extending beyond the tip of the second longitudinal vein, in 
the (J one-third and in the 9 about half the distance from that to 
the tip of the anterior branch of the third longitudinal fork. 
Auxiliary vein joining the costa over the base of the third sub- 
marginal cell ; first longitudinal vein joining the costa before the 
base of the anterior branch of the second longitudinal ; marginal 
cross-vein arcuated posteriorly at its tip, its base situated some- 
what before the tip of the posterior branch of the fourth 
longitudinal ; petiole of the third sub-marginal cell appearing as 
a direct continuation of the basal portion of the second longi- 
tudinal vein, more than half the length of the marginal cross- 
vein ; branches of the third longitudinal fork widely divergent : 
middle cross-vein originating near the base of the anterior branch 
of the fork of the fourth longitudinal vein, joining the second 
longitudinal vein at a point as much before the marginal cross- 
vein as the base of the third sub-marginal cell is beyond it ; fifth 
longitudinal vein complete. 
Hob. — Lawson, Blue Mountains (Masters). January. 
