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Florida Bugsgist 
Official wi cal of pa loede Eom er 
VOL. m “WINTER NUMBER NO. 3 
DECEMBER, 1919 
(Printed in January, 1920) 
*MOSQUITOES FOUND ABOUT GAINESVILLE, FLA. 
By U. C. LOFTIN 
MOSQUITOES AND DISEASE 
Malaria has been known for a long time, but it is only recently 
that it has been shown to be caused by a sporozoan parasite, be- 
longing to the family Plasmodidae, and that it is transmitted by, 
and only by, Anopheline mosquitoes. 
The idea that mosquitoes might spread malaria had been sug- 
gested many times, but it was not until 1898 that Dr. Ronald 
Ross, of the London School of Tropical Medicine, worked out the 
life history of the parasite causing “bird malaria” and found the 
' spores developing in the stomach of the mosquitoes. A little later, 
Grassi, following Ross’ theory, demonstrated the transfer of 
human malaria by Anopheline mosquitoes. Since that time, it 
has been confirmed by such a large number of workers that there 
can no longer be any doubt. 
*This is the second installment of Mr. Loftin’s paper and concludes Part I. The first 
installment was printed in the previous number. Part II, ‘“‘Traps for Mosquitoes,’’ will 
appear in the next number. All the figures for Part I were printed in the previous number. 
The Kny-Scheerer Corporation 
Department of Natural Science 
404-410 W. 27th Street, New York, N. Y. 
Entomological Supplies of Every Description 
We buy and sell rare insects. Illustrated catalogue on request. 
We recommend the goods advertised in The Florida Buggist. 
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