94 



Insects and Disease 



The adults may be found out of doors or in 

 houses, barns or other outbuildings. They do not 

 seem to like a draft and consequently will be more 

 apt to frequent rooms or places where there is little 

 circulation of air. Although they are usually sup- 

 posed to fly and bite only in the evening or at night, 

 they may occasionally bite in the daytime. One 

 hungry female took two short meals from my arm 

 while we were trying to get her to pose for a photo- 

 graph one warm afternoon. 



The female passes the winter in the adult con- 

 dition, hibernating in any convenient place about 

 old trees or logs, in cracks or crevices in doors or 

 out of doors. In the house they hide in the closets, 

 behind the bureau, behind the head of the bed, or 

 underneath it, or in any place where they are not 

 apt to be disturbed. During a warm spell in the 

 winter or if the room is kept warm they may come 

 out for a meal almost any time. 



THE YELLOW FEVER MOSQUITO 



Ranking next in importance to Anopheles as a 

 disseminator of disease and in fact solely responsi- 

 ble for a more dreaded scourge, is the species of 

 mosquito now known as Stegomyia calopus. While 

 this species is usually restricted to tropical or semi- 

 tropical regions it sometimes makes its appearance 



