Published online by Cambridge University Press: 06 April 2009
The two flies Fannia canicularis Linn, and F. scalaris Fab. are, on account of their habits, of considerable economic importance in their relation to man. It is therefore desirable that those engaged in public health and medical work and others should have a knowledge of the breeding and other habits of these flies, which they are certain to meet in their work under circumstances of varying importance. The inquiry of which this account is the result was undertaken several years ago at the request of Dr Monckton Copeman in connection with the Local Government Board's inquiry on the carriage of infection by flies in the reports of which a portion of this paper has been included. Owing to my removal from England to Canada in 1909 and subsequent pressure of work, its completion was delayed.