10 
I have been able to study the larva which occurs abundantly inthe Nilgiris. The 
larval characters bave no relation to any other Culex larve. A curious point is 
that the spines on the siphon tube, which is long and thin, are very large and 
curved, thus differing from those of the great majority of larvae which are short, 
straight spikes. 
Group V. ©. concolor.—The larval characters of this species are quite 
unlike those of any of the other groups. The larva of C. concolor is cannibal in 
its habits and has the morphological characters of cannibal larve. (Vide 
description given later of cannibal larv.) 
Theobald has figured parts of the larva of C. ¢egripes. It is evident from 
his drawings that the larve of this species and that of C. concolor are very 
similar. These two species alone amongst mosquitoes, of which the larva has 
been described, possess the peculiar rudder-like group of hairs on the siphon. 
Theobald, studying the adult insects, doubted whether they should be retained 
in the genus Culex. If he has not already renamed these two species, I. would 
propose that they be placed in a new genus Famesta, from the name of the 
first describer of a cannibal larva (see also later). 
Theobaldia.—The larva of Theobaldza annulata is figured by Theobald. 
The characters are almost identical with those of C. fatigans— 
Ova laid in boat-shaped masses. The siphon tube as in .C. fatzgans, 
Siphonie index 4. Antenna as in C. fatigans. 
Metanoconion.—The cva of Melanoconion are laid in the form of rafts, 
The rafts are more elongated than those of Culex. The individual ova resembie 
those of Culex. . 
The larvze of Melanoconion are peculiar and can be readily distinguished by 
the naked eye (PI. I, fig. 20). They resemble in general aspect the larvae of 
Teniorhynchus and like these are often bright green and very transparent. From 
the great development of the antennz and hairs these larva have a “ spiny” 
look. They occur in clear natural water where there is much vegetation. 
- The head is widened transversely and is plentifully supplied with hairs. 
There are two spineson the clypeus as in Cudex. The mental plate is comb- 
like (PI. III, fig. 3). 
The antennz are extremely large and well developed. They form antler- 
like projections which are very characteristic of the genus. The three portions 
of the antennz are very distinct, and the first may be curved. The hairs and 
spines are all long and stout (PI. II, fig. 15). 
The hairs on the thorax are numerous and long. Immediately behind the 
head two large hairs arise from papilla near the middle line. These project 
over the head and have already been mentioned as’ possibly being tactile in 
function. | 
