42 



AMERICAN ML'SECM (HIDE LEAFLETS 



At the same time, the briefness of the period of incubation insures a 

 practical freedom from yellow fever to places where the Yellow Fever 

 Mosquito occurs, if they he distant but six days from an infected port. 

 Hawaii is at present an example of such freedom from the disease, 

 although the Stegomyia occurs there. 



The Yellow Fever Mosquito is essentially tropical and sub-tropical. 

 ( )n the American continent its chief habitat is Central and South America 



FIG 34 THE YELLOW FEVER MOSQUITO (Stiynmijin faSCiata Fabricills) 



I and 2 females. 3 male. The figure shows well the banded abdomen, the 

 markings Oil the thorax and the striped legs. (Magnification about 5 diam- 

 eters.) From E. A. Goeldi: Os Mosquitos no Para, 1905. 



Distribution 



and the West Indian Islands. It is, however, found in the Southern 

 States, as may he seen on the map, Fi<;-. 33. According to 

 Dr. Howard its life zone, over which it might well spread, 

 includes practically all of the Southern States, as far north as Mason and 

 Dixon's Line. Theobald, of the British Museum, puts its distribution 

 between IS degrees north and south latitude. That it may be carried 



