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Nigeria by day. Possibly certain species feed more 

 readily by day than others. 



We have ourselves seen on rare occasions M. rossi 

 attempting to feed in the daytime, and Gray says 

 that Ce. albipes when disturbed will bite at any time 

 of the day or night. 



On the whole, however, the Anophelinae are 

 strictly nocturnal in their habits, nor do they hover 

 around lamps as has been supposed. Of A. bifurcatus, 

 Blanchard states that it bites fiercely at dusk, but at 

 night practically not at all. At dawn, however, it 

 begins again, and it bites at all times in shady places, 

 outhouses, etc. 



DISTANCE OF FLIGHT 



The maximum distance that Anophelines can fly 

 requires further study. In questions of flight, the 

 species of mosquito should always be noted. In 

 certain villages in India studied by us, Mym. culici- 

 facies, Nyss. stephensi, and Nyss. fuliginosus were 

 always present in abundance, if there were extensive 

 breeding-grounds within quarter of a mile. Where 

 villages were distant half a mile from extensive breed- 

 ing-grounds, they contained few or no Anofhtlines. 

 The only exceptions to this rule were when breeding- 

 places had only recently dried up. In the case of the 

 above species they undoubtedly fly fairly readily 

 quarter of a mile, but half a mile appears to be beyond 

 the normal distance of flight. 



RELATION TO COLOUR, ODOUR OF OBJECTS, ETC. 



Anyone who, in the tropics, has left his wardrobe 

 open at sunrise and* then closed it, and again examined 

 it some time later, will have often observed the well- 

 known fact that, on his white clothes, few or no 



