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small shallow pools in ' nallahs ' and river-beds, 

 in the dry season. 



Examine especially the edges where larvae 

 are fond of resting, with the head facing the open 

 water and the tail touching the bank. Note also 

 how larvae tend to cling to floating twigs, etc. 

 If no larvae are seen, stir up vigorously the 

 bottom of the pool with the spoon. This will 

 dislodge larvae from the edges, etc. 



Examine the surface of the pool again and 

 observe the larvae now plainly visible against the 

 muddy water. Wait a few minutes for the 

 appearance of the larger larvae, which remain 

 below longer than the younger forms. Examine 

 carefully for nymphae, which easily escape de- 

 tection. 



Dip out the larvae and nymphae with the 

 spoon as they appear. The thinner the edge of 

 the spoon the less disturbance is caused, and the 

 more readily are larvae removed. 



Place the larvae as caught in bottles, tubes, 

 etc. If desirous of labelling these, write in pencil 

 on the paper, and put into the bottle. 



2. By Dipping. — Choose any water with 

 grassy or weedy edges, eg., the edges of rivers, 

 streams, ditches, lake margins, swamps, etc. 



With the least possible disturbance, dip out 

 water from the most sheltered positions, and as 

 close to the vegetation as possible, bringing, up 

 water and weeds in the can. Allow the specimen 

 of water to remain a few seconds, and remove 

 any larvae or nymphae as they appear on the top 

 with the spoon. 



