44 Mosquitoes 



are practically untroubled, while those along the 

 wharves may often be invaded by hungry hordes 

 which render life a miserable burden to the occu- 

 pants of the vessels. If mosquitoes, not the marsh 

 species, are plentiful in a city, the chances are 

 that the breeding place is near by. It is apt to 

 be well concealed and easily overlooked, but a care- 

 ful search will often locate it in what might have 

 been considered a quite impossible place. 



When the wind is brisk, the insects will crawl into 

 crannies or beneath leaves and twigs. 



Dr. Smith says that, not only will most species 

 not rise or take flight in a strong breeze, even in the 

 evening, but even a light wind will keep them from 

 the second stories of houses, the insects at this time 

 preferring low and sheltered places. The actual 

 powers of flight, according to Dr. Smith, differ not 

 only in the species but also in the sexes. The flight 

 of the male is mainly a hovering in the evening, 

 although the males of cantator accompany the fe- 

 males for some distance inland; much farther than 

 males of sollicitans travel. He has watched sol- 

 licitans carefully on many occasions and finds that 

 it flies quite readily against even a brisk wind, mak- 

 ing good progress. Several times, stationing him- 

 self in an alley in the direct line of the wind, he 

 has watched the insect come sailing against the 

 breeze without hesitation or apparent effort. He has 

 driven at quite a rapid pace over infested roads and 

 found that the specimens hovering over the horse 

 and above the carriage had no difficulty in keeping 

 up. He also observed a steam launch on which he 



