feo) CPE 
VOL. XxXl. FEBRUARY, 1914. No. 1. 
THE DEVELOPMENT OF ANOPHELES PUNCTIPENNIS 
SAY: 
By Miss Cora A. Smita. 
Anopheles punctipennis Say, is a strictly American form of the 
so-called malaria mosquito. A. punctipennis and A. maculi- 
pennis, as well as A. crucians, have been constantly associated as 
malaria carriers, especially since Dr. Duprée’s discovery of the 
parasites of malaria in the salivary glands of all three. But in the 
case of A. punctipennis there is growing up a reasonable doubt 
as to whether in the north it is really a malaria carrier, or at 
least whether the malaria carried by it is not a different form from 
that conveyed by A. maculipennis. In 1903 Dr. J. B. Smith 
of New Jersey stated that in that state only A. maculipennis had 
been actually demonstrated to be a malaria carrier; and so far as 
known this has not been proved to be otherwise. In 1903, also, 
Hirshberg of Johns Hopkins published the account of his note- 
worthy inoculations of fifty-eight females of A. punctipennis. He 
allowed them to bite patients afflicted with estivo-autumnal mala- 
ria, without finding the parasites in the walls of the stomach, or 
intestine, in the body cavity, or in the salivary glands. In the 
opinion of the experimenter himself, however, the fact that out of 
forty-eight similar inoculations of A. maculipennis only eight were 
infected detracts from the certainty of the results with A. punti- 
pennis. 
Breeding Places. Larvee, pupe, and eggs have been taken from 
seven different pools near Ithaca, at Forest Home, from October 
to the middle of August. The people living close by do not have 
malaria, and on the evidence of reliable citizens, have not had it 
1 This study was carried on in the entomological laboratories of Cornell University under 
the kindly supervision of Dr. J. G. Needham, tO whom I am greatly indebted for constant 
advice and help. 
