SOME FACTS ABOUT MALARIA. 11 
has A. punctipennis. This has not been recorded of A. guadrimacu-, 
latus. 
They do not fly far. It is doubtful whether any of these species 
ever flies for more than half a mile. 
These Anopheles mosquitoes breed in all sorts of accumulations of 
standing water, in pools, springs, watering trouglis, in the footprints 
of cattle in marshy land, and in marshes where fish are not abundant, 
in drains and gutters choked with grass or weeds, in old boats along 
the waterfronts, in hollows in rocks, in the backwaters of even rapid 
— 
Fic. 3.—Anopheles punctipennis: Female mosquito. Greatly enlarged. (Original.) 
streams, in earthenware vessels, in water barrels and tubs, in cess- 
pools, and all places carrying water accumulations, whether pure or 
foul. Anopheles crucians and A. quadrimaculatus have even been 
found breeding in brackish water along the seacoast. 
The minute, blackish eggs (fig. 4) are laid on the surface of the 
water and are found floating on their sides singly or in groups. 
Their larve do not hang from the surface of the water by the tail, 
as do other mosquito larve or “ wrigglers ” when at rest, but le flat 
at the surface, with their heads turned upside down, feeding upon 
minute floating particles at or near the surface (fig. 5). 
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