83 
2. Note the great transparency of the larva and 
the frequency with which brilliantly green specimens 
are found. 
Under a low objective note the following, which 
appear to be characteristic of this genus :— 
i. The enormous horn-like and curved antennae 
(Fig. 29). 
Fig. 29 . Culex fatigans (left), Taeniorhynchus sp, (right) 
2. The extreme length and slenderness of the 
syphon tube (Fig. 27). 
Psorophora .—The larvae are large, half-an-inch in 
length. They are extremely cannibalistic. 
The Nymph 
The nymphae of mosquitoes are extremely 
characteristic bulbous comma-shaped creatures, having 
a large globular body (head and thorax) and a small 
tail, kept more or less tucked in beneath. When 
disturbed they dart downwards with great speed, but 
very soon reappear at the surface. 
Nymphs are not so easily seen in pools as larvae. 
The differences in the nymphae of different 
