[ 93 1 
purple-black scales and white triangular lateral spots. Legs all black 
except under sides of femora. 
Female Head .—Clad with spatulate purple-black scales in the centre, 
a narrow white band on either side, succeeded by purple-black scales; 
the portion of orbital margin beyond the white band is bounded by a narrow 
line of white scales. Upright forked scales extend forwards to the "vertex, 
they are dark brown in colour almost black behind on the nape, \ertical 
and orbital bristles black. Basal joint of antenna black with a few small 
scales and hairs on its inner face, second joint pale at the base clad with 
some small almost spindle-shaped black scales which extend round on all 
sides of the joint, verticillate hairs on the joint very small, portion of 
joint beyond verticils black, remaining joints black except at the insertions 
of the verticillate hairs where they are colourless, clad with numerous 
white hairs; verticillate hairs black. Clypeus black; nude. Palpi with 
three apparent joints. Balsam preparation of palpi shews four joints, two 
first joints of about equal length; third larger and rather longer than 
second; fourth like a small nipple on the end of the third; the whole palpi 
rather less than one-fourth the length of the proboscis clad with black scales 
and some long black hairs. Proboscis as long as the abdomen, rather thick 
and clad with purple-black scales; labellae rather paler than the rest of the 
proboscis. 
Thorax .—Prothoracic lobes dark brown, with a few spatulate scales 
inserted on the upper outer face which are almost white in colour and two 
rows of dark brown bristles. Mesonotum black thickly clad with narrow- 
curved scales which under a hand lens appear purple-bronze but 
under a 2/3 they look merely black. The bristles are large and black in 
colour. Scutellum black; the .middle lobe is very large with conca\e 
margin and truncated apex, the lobes are clad with broad spatulate purple- 
black scales; scutellar bristles dark brown central lobe with five. Pleurae 
smoky-brown with patches of broad flat white scales. V\ ings long and 
rather narrow, clad with long narrow purple-black lateral scales w hich are 
very slightly enlarged at the apex and have rounded ends; the median 
scales are also long and narrow with oblique ends;, fork cells long, the first 
bein 0- longer and narrower than the second and its base nearer the wing 
base; the stem of first fork cell is about two-thirds the length of the cell. 
Median transverse vein nearer wing apex than supernumerary, the posterior 
transverse vein is about three times its own length from the .median. 
Coxae dusky brown with scales and hairs; fore femora clad w ith dark 
purple-brown scales above and laterally, and white scales beneath , mi 
and hind femora with dark scales above and at the apex laterally, white 
scales ventrally and laterally at the base; the tibia metatarsus and tarsi of 
all the legs clad with dark purple-browm scales and numerous short stiff 
hairs. Ungues equal those on the fore and mid legs shew a notch which 
can hardly be called a tooth. 
Abdomen .—Above and laterally clad with purple-black scales. At the 
base of each segment after the first is a small spot of white scales. In 
some specimens these spots only shew on the third, fourth and fifth seg- 
ments. The venter is pale scaled and numerous pale hairs fringe the 
J segments ventrally. 
