1176 
DIPTERA OP AUSTRALIA, 
the fore-legs the tibiie slightly longer than the metatarsal joint. 
Wings a little shorter than the body, pellucid with a greyish tint, 
very slightly smoky at the tip, veins deep brown. Costal vein 
extending beyond the junction with the second longitudinal 
vein nearly one-third of the distance from that to the tip of the 
anterior branch of the third longitudinal vein ; anterior branch 
of the second longitudinal vein at an angle of i5“, its base 
situated at a point x'ather less than one-third of the distance from 
the tip of the first longitudinal vein to the tip of the second 
longitudinal ; auxiliary vein joining the costa a little beyond the 
tip of the marginal cross-vein ; posterior branch of the third 
longitudinal vein indistinct at its base, and not quite I’eaching 
the wing-margin ; both branches of the fourth longitudinal not 
(juite reaching the posterior margin. 
Hah . — Glenbrook (Masters) ; Sydney (Mastery and Skuse). 
November, December, and January. 
Ohs . — Although I have a large number of specimens before me, 
there is not a single ^ among them. This species is evidently 
very closely allied to the preceding, but its smaller size and black 
thorax at once distinguish it. 
b. Fifth longitudinal vein not reaching the 'posterior margin. 
148. Platyura fulva, sp.n. 
5- — Length of antennae C’030 inch ... 0'76 millim^ti’e. 
Expanse of wings 0*220 x 0-070 ... 5-58 x 1-77 
Size of body 0*220 x 0*040 ... 5*58 x 1*01 
Antennae half the length of the thorax ; joints of the scapus 
fulvous or ferruginous ; flagellar joints brown. Hypostoma and 
front fulvous ; vertex black or very deej> brown. Palpi brown. 
Thorax fulvous, densely covered with short black hairs, setaceous 
on the lateral borders from below the humeri to the scutellum ; 
scutellum fuhmus, fringed with black setaceous hairs. Pleurae 
and metathorax ochraceous, with some pale fuscous. Halteres 
ocliraceous, the club fulvous, with a minute pubescence. Abdo- 
men about two and a half times the length of the thorax, very 
