32 
scales laterally, and a faint pale narrow border round the eyes r 
numerous black and brcwn bristles ; antennae dark brown, 
with pale pubescence ; basal joint pale ferruginous to ochraceous 
basal half of the second joint pale ferruginous ; palpi densely 
covered with deep brown scales, and in some specimens with a 
few pale grey ones, and with numerous small black bristles ; 
proboscis covered with dark brown to violet-black scales, some- 
times paler in the middle, and with a pale apex Thorax brown, 
with two darker lines on the denuded surface, sometimes with 
traces of a third median line, covered with bright golden to pale 
golden or almost fawn-coloured curved scales, some being rather 
broader than others ; there are also three rows of black bristles, 
the median one ending at the bare space before the scutellum ; 
scutellum dull ochraceous, with pale golden to creamy curved 
scales and brown border-bristles, which vary in number on the 
median lobe ; metanotum pale chestnut-brown, in some specimens 
with darker markings ; pleurae pale testaceous, with three or more 
small patches of pale, almost white scales. Abdomen covered 
with brown to deep purplish-brown or almost black scales, each 
segment with a basal white band rather expanded in the middle, 
and with white lateral patches, which show especially in gorged 
specimens ; posterior borders of the segments with pale golden- 
brown hairs ; venter with numerous dull white scales ; the first 
abdominal segment is dull ochraceous-brown (black in gorged 
specimens), with two patches of dull violet-black or ochraceous 
scales and numerous golden-brown hairs. Legs with the coxa? 
deep ochraceous ; femora deep brown above and at the apex, 
grey beneath, and tipped with a few yellow scales ; tibiae deep 
brown, with a deep ochraceous apical spot (sometimes absent), 
and with pale dull brown bristles ; metatarsi and tarsi deep brown 
to almost black, with dull ochraceous reflections in some speci- 
mens ; hind metatarsi a little shorter than the hind tibiae ; 
ungues equal, simple, and of moderate size. Wings longer than 
the abdomen, the veins clothed with brown and purplish-brown 
scales ; long scales on the whole of the second and fourth long 
veins, also on the third, the upper branch of the fifth, and the end 
of the sixth, as well as on both the branches of the fork-cells ; 
the first sub-marginal longer and slightly narrower than the second 
posterior cell, its stem short, always more than one-fourth the 
length of the cell ; the stem of the second posterior cell longer 
than that ot the sub-marginal cell, but not nearly as long as its 
fork : the posterior cross- vein a little longer than the mid-cross- 
vein, distant from the latter always more than its own length, 
usually about twice its own length distant. Halteres ochraceous, 
slightly fuscous at the top. 
Length, 4.5 to 5.5 mm. 
$ . Head ornamented as in the $ ; antennae deep umber- 
brown, with pale bands and deep brown verticillate hairs ; basal 
joint large, pale ochraceous, palpi deep ochraceous, covered 
