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[ hairs. Verticillate hairs dark brown. Clypeus almost black with a frosty 
I tomentum. Palpi minute closely applied to the clypeus, brown in colour 
(but whether this is due to scales or is the colour of the palpi itself I cannot 
say) hairy. Proboscis about as long as thorax and abdomen together 
enlarged gradually at the apex ; on the upper surface the scaling is bluish- 
white for the first two-thirds then black for a short distance, then bluish- 
white again, then black at the base of the labellae which are reddish-brown ; 
beneath and laterally the scales are black. 
Thorax. —Prothoracic lobes dark umber-brown; running obliquely 
across each lobe is a line of bluish-white scales which forms one line on 
either side with the bands on the head and middle of the pleurae. This 
peculiar setting of the head is due to the high arching of the mesonotum 
which projects forwards the head is pushed downwards and its upper 
surface instead of looking upwards and backwards looks almost directly 
forwards thus the proboscis is carried at right angles to the body, 
and the band of white scales present on the heads of so many members of 
this genus comes to lie in a horizontal plane and always forms one line 
j with that on the prothoracic lobes and pleura. Mesonotum dark umber- 
brown ; running round the margin of the anterior half from wing to wing 
. is a bluish-white line composed of a single row of scales which are spindle- 
shaped near the wings shorter and more circular towards the front; the 
rest of the mesonotum is thickly clad with dark brown narrow-curved 
scales and numerous stout dark brown bristles; there are a few paler 
brown scales scattered among the others. Scutellum dark brown with a 
paler brown margin clad with dark umber-brown spindle-shaped scales ; 
' central lobe with four dark brown bristles. Pleurae dark brown, crossed 
horizontally about its centre by a bluish-white line composed of a row of 
racquet-shaped scales ; below this is a second shorter line but the scales 
composing it are really inserted on the coxae. There are the usual bristles 
which are dark brown. Costal margin of wing with two dark scaled areas, 
one involving the basal half of the costa and portions of subcostal and first 
long veins posterior to it, the other lies near the apex and also involves 
the first and second long vein and reaches to a point opposite the base of 
first fork cell; the median scales on the basal half of the third vein are 
dark brown and most of those on the upper branch of the fifth; the rest of 
the scales vary in colour as the direction of the light is altered being some¬ 
times light silvery-brown and again bluish-white. The wing scales are 
! large, the median being broad spatulate, many with oblique ends, the laterals 
I are large fusiform scales and are only present on branches of the fork cells 
and the third long vein; the fork cells are very short, the first is shorter 
j than the second and closely applied to the margin of the wing; base of 
second cell much nearer wing base ; posterior cross vein a little more than 
its own length from the median. Coxae brown ; at the level of the insertion 
of the coxae there is a line of broad bluish-white scales. These scales are 
1 ‘ racquet-shaped and massed in four spots one on each coxa and one between 
the fore and mid coxae on the pleura. Under a hand lens these spots 
look like aline as the interspaces are too small to be seen. There is also a 
row of dark brown bristles on each coxa and a spot of white scales on the 
front of each fore coxa. In the fore leg the femora is clad with dark brown 
scales and a line of white scales either beneath or on the posterior surface 
but the leg has so twisted in drying as to make it difficult to decide; there 
l! 
