142 Mosquitoes 



and breeding the adults. The characters, though 

 minute, are quite usable after a little practice. To 

 procure absolutely perfect specimens we isolated the 

 larvae, to prevent their biting each other. 



How far Anopheles can fly is uncertain. I am sure 

 that they will go at least half a mile, and Dr. Smith 

 says that he has reason to believe they will travel a 

 mile or more, but do not do so habitually, the local 

 confinement of malaria epidemics to the vicinity of 

 breeding places and the practical exemption of large 

 portions of even small towns where the fever breaks 

 out every year, all indicating that the Anopheles are 

 preferably home bodies. If there is need for a long 

 journey to oviposit or bite, they attempt to make it. 



The length of life in summer is estimated by Dr. 

 Smith at a month. Since, as he remarks, crucians 

 bites in the daytime, from sunrise to II A. M., and 

 from 3 P. M. until after dark, the mere going early 

 indoors is not a positive protection against malaria. 

 In the South I have frequently been attacked by 

 punctipennis at one or two o'clock on a bright after- 

 noon, but when resting in a shady place. Macirii- 

 pennis does not seem normally to feed during the 

 day, though with some coaxing it may be induced 

 to do so in the laboratory. Most Anopheles feasting, 

 however, seems to begin about dusk, when they hold 

 high carnival and raise their ribald drinking song, 

 whose unwelcome sound I do not recollect hearing 

 in the middle of the day. 



There has been some discussion as to the attitude 

 assumed by Anopheles while biting. To settle the 

 point definitely, the author allowed punctipennis to 



