28 THE FLORIDA BUGGIST 
MOSQUITOES FOUND ABOUT GAINESVILLE, FLA. 
(Continued from page 23) 
The length of life of the adult is variable. They must live for at least 
a week after biting before they can transmit malaria. In the north, they 
hibernate as adults in cellars, barns, ete. (Howard 1911). They fly only 
short distances. In the work at Panama, three hundred yards from the 
breeding points has proved to be safe. 
PLATE IV. (23) Warmouth Bass (Chaenobryttus gulosus). 
Anopheles usually bite only at night and this point has been empha- 
sized in protection from malaria, but both A. crucians and A. quadri- 
maculatus have bitten in the late morning in the Experiment Station toilet. 
BREEDING PLACES 
Larvae have been taken in the edge of marshes, in road ditches, base- 
ments, pools, and several other places that were a mile or more from the 
University. They have been several times taken with Culex larvae. 
STEGOMYIA 
Eggs.—tThe eggs are laid singly as with Anopheles. They are black in 
color, conically elongated, and are covered with a reticulated membrane 
which collects air and gives them buoyancy (Berkley 1902, Art. by Dr. 
Agromonte). They usually hatch in from fifteen hours to three days, but 
will stand desiccation for a day or two and remain viable for at least a 
month (loc. cit.). 
Larvae.—tThe larvae closely resemble those of Culex, but are larger, less 
active, and remain below the surface much longer. The anal tube is 
somewhat shorter and thicker than Culex, being about three times as long 
as wide, and tapers regularly. The anal tube bears but one pair of tufts 
and has the teeth of the pecten evenly spaced. The antennae do not taper 
apically and the tuft is placed at or before the middle. The length of the 
larval stage varies from eight to twenty days. 
