116 A Monograph of Culieidae. 
towards the base ; the last two joints of nearly equal length, the 
second joint a little more than half the length of the third, the 
apical joint is bristly ventrally and so is the apex of the penulti- 
mate joint; clypeus with grey sheen; proboscis metallic purple, 
with golden scales scattered over the basal portion, much curved ; 
in certain lights the apices of the palpal joints are mauve and 
the basal joints of the antennae grey. 
Thorax black (much denuded), showing traces of flat apple- 
green, violet and blue scales, the prothoracic lobes being covered 
with azure blue scales; pleurae brown with white scales ; scutel- 
lum deep brown, with flat apple-green scales; metanotum deep 
brown. 
Abdomen brilliant metallic blue, the basal segment green, 
and also the base of the second segment, each segment with 
basal lateral silvery spots ; the caudal tuft is composed of bronzy- 
brown scales only ; venter with silvery white and blue metallic 
scales. 
Legs apparently all unbanded (the specimen under descrip- 
tion has the legs imperfect), violet and purple scaled, the ventral 
surface of the femora yellowish-white. 
Wings brownish, the first sub-marginal cell very small, only 
about half the size of the second posterior ; the mid cross-vein 
small, much nearer the base of the wing than the supernumerary ; 
the posterior cross vein about twice as long as the mid, sloping 
towards the base of the wing and situated a little nearer the 
apex of the wing. Halteres yellowish-brown. On the costal 
border the wings have a purplish hue. 
Length.—8 mm. 
6. Head and thorax coloured as in the 9 ; palpi yellowish, 
with brown scales showing violet reflections, the apices of the 
joints mauve in some lights, the apical joint as long as the two 
preceding, which are of equal length; the second joint not quite 
as long as the third; clypeus frosty grey, also basal joint of 
antennae ; antennae brown, joints thick, except the two long 
apical ones, which are narrow ; plumes brown, the second joint 
equal to about two of the following, densely scaled ; proboscis 
metallic purple and bronze. 
Abdomen metallic purple above, the black caudal tuft large ; 
genitalia deep brown above, with long hair-like scales on the 
basal lobe, violet below ; venter of abdomen metallic blue, with 
white lateral patches ; the claspers are long and thin and end in 
