1188 
DIPTEKA OF AUSTRALIA, 
with a very pale greyish-brown tint, brilliantly iridescent ; costal 
and first two longitudinal veins deep brown. Auxiliary vein very 
pale, joining the costa immediately before the tip of the marginal 
cross-vein ; first longitudinal vein reaching the costa almost 
imperceptibly before the base of the fork ; anterior branch of the 
second longitudinal vein paler than the second longitudinal, at an 
inclination of 45°, joining the costa at a point about | of the- 
distance from the tip of the first longitudinal vein to that of the 
second longitudinal vein ; costal vein extending beyond the tip 
of the second longitudinal vein about of the distance from that 
to the tip of anterior branch of the fork. 
Hab . — Elizabeth Bay, near Sydney (Skuse). September. 
Ohs . — The type is the only specimen I have seen. 
155. Antriadophila nigra, sp.n. 
— Length of antenme O'OSO inch ... 0‘76 millimetre. 
Expanse of wings 0’080 x 0-030 ... 2-02 xO'76 
Size of body 0-080x0-012 ... 2.02x0.30 
Antenme slender, as long as the head and thorax combined ; 
deep broAvn, the joints of the scapus somewhat lighter than those of 
the flagellum ; flagellar joints equal in size to those of the scapus, 
the terminal joint longer than the rest, conical. Head, hypo- 
stoma and palpi black. Thorax black, levigate, with three longi- 
tudinal double rows of short black hairs, not coalescent posteriorly ; 
lateral borders and scutellum setiferous ; pleurse, scutellum and 
metathorax black. Halteres wholly yellow, with a few scattered 
minute hairs. Abdomen nearly three times the length of the 
thorax, black, densely clothed with short black hair; foi’ceps small. 
Coxae and femora pale ochraceous ; tibiae ochraceous, darker than 
the coxae or femora ; tarsi dusky brown ; tibial spiu-s of the fore- 
and intermediate-legs short ; lateral spines missing (or extremely 
microscopic). Wings pellucid with a very pale greyish-brown tint; 
veins greyish-brown. Auxiliary vein pale, almost invisible just 
before reaching the costa, joining a little before the tip of the 
