Thorax .—Prothoracic lobes dark brown with bristles only. Mesonotum 
bright ferruginous or paler yellowish-brown or greenish-black, according to 
the length of time the specimen has been born ; it is entirely clad with 
bronzy or dark brown narrow-curved scales and rows of dark brown 
bristles. The scutellum is in colour the same as the mesonotum and is clad 
with similar scales; bristles to the mid lobe dark brown and usually four in 
number. Pleurae dusky-brown with a patch of small spatulate silvery 
scales. Wings clad with brown scales of the generic type that is the lateral 
scales towards the apex of the wing are broadly clavate; fork cells of about 
equal breadth, the first longer than the second, its base slightly nearer 
the apex of the wing, its stem about two-thirds the length of the cell; 
supernumerary and mid cross veins almost in a line, posterior cross vein 
twice its own length from the mid. Coxae creamy translucent and with 
bristles only. Legs entirely clad with dark brown scales with purple 
reflections in some lights on the scales on the tarsi appear coppery. Ungues 
equal and simple. 
Abdomen .—Clad with dark brown scales above silvery-grey scales 
beneath. 
Male .—Head as in the female with pale grey narrow-curved scales in 
the centre on either side of a bare line, spatulate lateral scales of a greyish- 
blue or pale olive-brown set like tiles on a roof at the sides but becoming 
less dense as the middle line is approached. These flat scales come right up 
to the middle in front but gradually diverge from the vertex forming a 
triangular space which is the portion clad with narrow-curved scales. The 
general tint is lighter than that in the female. Basal joint of antenna very 
large dark brown in colour and without scales. Succeeding joints to the 
tenth very thick and with dark brown crescentic ridges on which the 
verticillate hairs and the peculiar scales about to be described are inserted ; 
on the sixth joint is a prominent ridge on the outer and upper surface and 
upon this a row of long slightly clavate dark brown scales are inserted. 
These scales are about as long as four antennal joints they stand well out 
from their insertion and curve slightly forwards, on the seventh, eighth and 
ninth joints there is a prominent ridge on the inner side for the insertion of 
deep brown scales of a peculiar shape the appearance presented is that of a 
bunch of scales which have been crumpled and has not straightened out again, 
on the tenth segment there are a few needle-like yellowish-brown scales 
looking inwards; the verticillate hairs are dark brown and very dense and 
the two last antennal joints together are longer than the whole of the remainder 
of the antenna. Palpi longer than the proboscis by their two last joints which 
are clad with rows of long hairs and in the natural state are turned upwards 
as in culex. Proboscis and palpi clad with dark brown scales. At the base 
of each palpus is a curious finger-like process clad with hairs which is peculiar 
to some of the males of this genus. 
As in the female the colour of the mesonotum varies much and as it is 
thinly scaled its colour is a distinct feature in the appearance of any parti¬ 
cular specimen, thus changes in the colour of this part in specimens may 
cause any two specimens to appear very unlike each other. Dark reddish- 
brown or dark brown with purple patches or lines or light yellowish-brown 
are the usual colours seen. The genital lobes seem to have two processes at 
