110 
A Monograph of Culicidae. 
Observations. —These cannot be confused with any other 
species. The densely dull yellow-scaled apical segments of the 9 
should make it easily recognisable, together with its large size. 
Amongst Mr. Wray’s specimens are two ^’s of this species, 
the abdomen ending in dense yellow-scaled segments like the 
9 , and numerous others have been sent. It is only placed 
provisionally in the genus Culex. 
The species has also been sent me by Captain James and 
Lt.-Col. Giles from India, where it appears to be generally 
common. 
Captain James writes me that “ the larva of this species is 
about one-quarter to one-third of an inch long, brownish in colour, 
and is easily distinguished from other mosquito larvae by the 
fact that, when resting at the surface of the water, it is com¬ 
pletely submerged, and lies almost parallel to the surface, its 
body being slightly curved. It is carnivorous, and seems to 
feed chiefly on other larvae.” The larva thus approach 
Anopheles in its position in the water. 
A specimen labelled C. fuscanus in the old collection at the 
British Museum is only this species. 
This may be Desvoidy’s Culex concolor, but the description is 
so meagre that it is impossible to say definitely without seeing 
the type, which I cannot trace. I have adopted the name 
because it seems to be generally known as that species. 
The habitat, also, from which C. concolor was obtained is 
unknown. 
Desvoidy’s description is therefore appended :—■ 
“Proboscis, palpi and legs pale yellowish; antennae brown; thorax 
pale rufous, with three obscure lines; abdomen pale yellow, with the 
incisures of the segments dorsally brown; legs darker brown. Wings 
almost limpid, very slightly yellowish, the veins almost nude. 
Length , 4 lines 6 .” 
I have not seen the larvae, but they apparently differ from 
typical Culex larvae. The imago also differs in appearance from 
all the other Culicidae. Although I can find no important 
structural peculiarity in this gnat, I believe it will be shown to 
belong to a distinct genus, when the larva has been carefully 
examined. 
