BY FREDERICK A. A. SKUSE. 
1385 
9- — Length of antennse 0'017 inch ... 0'42 millimetre. 
Expanse of wings 0'090 x 0'040 ... 2*27 x LOl 
Size of body 0-080 x 0-020 ... 2-02x0-50 
and 9 . — Antennte black, with a hoary reflection, densely 
pubescent, rather thicker in the 9 ; in the ^ the length of the 
head, longer in the 9 . Entire head, eyes, and palpi black. 
Thorax black, sub-nitidous, densely covered with a very short 
black pubescence •, pleurae, scutellum and metathorax black. 
Halteres black. Abdomen black, sub-nitidous, densely clothed 
with very short black hairs. Coxae, femora and tibiae black, the 
genua yellowish. Tarsi ochraceous-brown. The coxae and femora 
more dilated, and the latter shorter than the intermediate and 
hind pairs. Wings somewhat longer than the body, a little more 
than twice as long as wide, less in the ^ than the 9 > hyaline, with 
brilliant opaline reflections ; costal, first and second longitudinal, 
and marginal cross-vein yellowish-brown, the rest very pale and 
indistinct. First longitudinal vein joining the costa at a point 
rather more than one-half the distance from the base to the tip of 
the second longitudinal vein; marginal cross-vein extremely small; 
costal vein extending almost imperceptibly beyond the tip of the 
second longitudinal, reaching the middle of the anterior border, 
and a little before the tip of the fourth longitudinal vein ; base of 
the fork of the third longitudinal situated about the middle of the 
wing, the anterior branch without the short transverse wing-fold 
appearing in *S'. lomjipennis ; fourth longitudinal not reaching the 
wing border; wing-fold between the third and fourth longitudinal 
veins forked; fifth longitudinal complete, reaching the posterior 
border opposite the tip of the first longitudinal vein. 
Hah . — Apparently generally distributed in N.S. Wales (Masters 
and Skuse). Throughout the year ; very abundant in September 
and October. 
Ohs . — In the spring months it is scarcely possible to find a 
window without one or two 8 j)ecimens, wliile 1 have frequently 
