88 



Chapter IK 



To CAPTURE, PRESERVE ALIVE, AND EXPERIMENTALLY 

 FEED MOSQUITOES 



To CAPTURE ANOPHELINES 



Necessary Apparatus. One or two small collecting 

 tubes, a clean and perfectly dry bottle (whiskey bottle), 

 some cotton wool (Fig. 34). 



To DETECT ANOPHELINES 



Choose a suitable native village, i.e., in Africa, 

 any bush village ; or in India, any village near a nullah 

 or other source of Anopheline larvae. 



Determine whether Anopbelines exist in any of 

 the following situations : 



1. In the dark corners of sheds, cow-houses or 

 other out-houses. 



2. Under the eaves (in darkish parts) of the huts. 



3. In the huts themselves, hanging to straws, 

 stalactites of soot, etc., etc. 



4. Any other likely situations, e.g., collections 

 of dry grass ; in the undergrowth in the bush (capture 

 in this situation is difficult). 



If, on inspection, none of the insects can be 

 detected by careful scrutiny (the most concentrated 

 attention is, as a rule, needed), the thatch should be 

 carefully disturbed with the hand or a short stick. 



To DETECT CULEX 



Examine the walls of houses, out-houses, and 

 native huts. Examine especially clothes hung up in 



