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a few golden narrow-curved scales run along the orbital margin from the 
vertex for a short distance; on either side of the central line the head is 
clad with spatulate scales with rounded ends of a rich dark brown colour 
with purple reflections and more laterally is a broad band of pale golden 
spatulate scales succeeded by dark brown scales. There is considerable 
variation shewn in different specimens. In some the narrow scales are 
only seen on the nape and along the orbital margins the central line beinu 
absent. The lateral spot is a semicircular spot in some in others it is a 
broad band running back to the margin of the occipital foramen. There are 
a few dark brown upright forked scales on the nape. Basal joint of 
antenna in some ochraceous with a dark shading on the inner face, in other 
specimens ferruginous with a few hairs and small scales (very difficult to 
see) on the inner face, second joint longer than succeeding joint coloured at 
the base like the basal joint darker at the apex with a very few small brown 
scales and some brown hairs besides the verticillate hairs, remaining joints 
dark purple-brown with numerous short white hairs and dark brown verticils, 
Clypeus dark ferruginous or lighter yellowish-brown in some, large and 
nude. Palpi vary somewhat in length in different specimens, from about 
one-sixth to one-seventh the length of the proboscis, three-jointed, first joint 
constricted in the middle, second of a pyramidal shape the broadest part at 
the apex, about as long as first joint, third joint longer than either of the 
others, elliptical. There is no small terminal joint and I have no less than 
six mounted preparations of the palpi but cannot make more than three 
joints in any one of them. I he palpi are clad with dark brown scales 
and numerous short hairs. Proboscis shorter than the abdomen (though 
it varies slightly in different specimens) clad with dark purple-brown scales. 
Tliovax .—Prothoracic lobes dark brown and frosted. At the lower 
end in a good many of the specimens is a distinct projection like a teat 
and it is to be observed even in a fresh undried specimen so cannot be due to 
distortion in drying. There are two vertical rows of dark brown bristles 
but most of the specimens shew no scales. Mesonotum varies much in 
colour according to the age of the adult fly as freshly hatched specimens are 
light yellowish-brown whereas those caught in the jungle are dark brown 
or reddish-brown. The usual colour is brown with darker brown lines one 
in the centre one on either side of this and a dark patch in front of the 
scutellum and over the base of each wing; these lines are not always to be 
seen they are best seen under a 2/3 power. On the anterior margin 
are three patches of golden scales which under a hand lens appear as a line; 
there is also a small patch of golden scales over the base of each wing, the 
remainer of the mesonotum is clad pretty thickly with light brown narrow- 
curved scales which under a hand lens appear as a dense feltwork of purple- 
bronze scales; they look darker because they take the colour of their 
background. In some specimens the linear arrangements of the scales is 
much more plainly seen. In some lights under a 2/3 many of the scales shew 
golden-brown in a good light. Scutellum dark brown ; central lobe clad 
with golden-brown narrow-curved dark scales, dark brown scales on the 
lateral lobes; bristles dark brown, the numbers on the central lobe varying 
considerably four to six being a common number but sometimes seven are 
present sometimes only five. There are always a few shorter bristles anterior 
to the long bristles and sometimes one or more of these is more developed. 
