220 
A Monograph of Culicidae. 
golden sheen ; antennae with the basal joint nude, steel coloured, 
next joint densely scaled with long scales, many azure blue in 
colour; this second joint is long, equal to about four of the 
following articulations, with short pilosity ; rest of the antennae 
brown, with dense brown plume-hairs, with a golden reflection 
in some lights ; palpi as long again as the antennae, metallic 
blue and purple, 5-jointed, the last joint long and pointed, 
penultimate joint short and thick, with a few short bristles, 
about one-third the length of the last, antepenultimate about 
the same length, slightly thicker the next 
half its length, and the first very small; 
the four basal joints have golden scales 
below ; proboscis long, curved, covered with 
small bronzy scales. 
Thorax brown, with small spindle-shaped 
scales, metallic bronze in colour, some with 
brilliant blue reflections ; those in front of the 
scutellum flat and showing azure blue reflec¬ 
tions ; prothoracic lobes covered with flat azure 
blue scales, with a border of black bristles ; 
scutellum dull honey yellow, covered with flat 
scales, those on the lateral lobes azure blue, 
those on the mid lobe brown, but bright azure 
blue in some lights, border-bristles golden-brown ; 
pleurae ferruginous, with small white scales, 
some showing metallic violet reflections ; meta- 
notum small, partly hidden, yellowish-brown. 
Abdomen completely covered with flat scales, 
which, when examined facing the light, appear 
dark and bright almost metallic brown, but 
when the abdomen is pointed from the light, 
metallic purple, violet and coppery red, the 
caudal tuft composed of brilliant red dense hairs, 
attached chiefly to the sides of the sixth and seventh segments, 
last segment with a smaller tuft on each side below ; where the 
scales are denuded, ferruginous patches appear. 
Legs moderately thick, covered with metallic blue and purple 
scales, looking quite black in some lights, the scales of the venter 
of the femora and tibiae being coppery in hue, in the fore and 
mid legs the metatarsus about half the length of the tibia, third 
tarsal joint small ; in the hind legs the metatarsus is as long as 
the tibia, and the third tarsus not small ; ungues of the fore and 
ir 
Fig 65. 
Male palpi of I 
Megarhinus haem or 
rhoidalis; and II 
M. separatus. 
(X. 12.) 
