The Ungues. —Compare those of M. funesta and 
M. rossi (Fig. 54). 
The Cross Veins. —The position of the super¬ 
numerary, mid, and posterior veins is not of much 
importance in distinguishing species ; as this factor is so 
variable (Fig. 59). 
Larval Characters. —This is an important means 
of distinguishing species otherwise almost indis¬ 
tinguishable. 
N.B.—One precaution must be taken, viz., there must be no 
doubt that the larva and mosquito in question are of the same species. 
To make certain of this examine the full-grown larva (p. 191), and then 
allow the mosquito to hatch out from it, and then examine the 
mosquito. 
Characters of the Ova. —These are also of great help 
in distinguishing species. Examine the mosquito and 
then the eggs (p. 187) when they have been laid. 
