re 



AN ACCOUNT 



OF 



BRITISH FLIES 



i^D I P T E R A). 



FRED. V. THEOBALD, B.A., RE.S. 



CAMBRIDGE UNIVERSITY EXTENSION LECTURER IN INJURIOUS INSECTS, ETC. 



VOL. I. 



LONDON: 

 ELLIOT STOCK, 62, PATERNOSTER ROW, E.G. 



1892. 



