vi PREFACE TO THE SECOND SERIES 



certain districts, but as often desert them for even a term of years. 

 Nevertheless, it is in well-known resorts that the capture of certain 

 species is alone possible. A classification of Brauer will be found 

 in this volume, as in its predecessor; a cross marks the specimens 

 contained in this volume, and a star intimates they will be found in 

 the preceding volume. It is hoped that this little book may not be in 

 vain in inducing students to commence a study of wide possibilities. 

 The following books may be of use to the student : 



Theobald's Monographs of the Culicidae. (British Museum : some 



of which are out of print.) 

 Verrall's List of British Diptera. 



British Flies (two volumes). 

 Austen's Bloodsucking Flies. (British Museum of Natural 



History.) 

 Parasitology, Vol. IX, No. 4. July 27, 1917. C.U.P. Notes on 



Nycteribiidae. 

 Staveley's British Insects. 

 Instructions for Collectors. (British Museum.) 

 Insects at Home. (Wood.) 

 A map showing known distribution of Anopheles mosquitos. 



(British Museum.) 



In the Exhibited Series of Insects in the Department of Zoology, 

 British Museum. (Natural History), Cromwell Road, S.W., will be 

 found a short series of British Diptera : those in table cases having 

 fine enlarged coloured illustrations on the lids of the cases, of great 

 use to students the main collections of the Museum being reserved 

 elsewhere. 



E. K. PEARCE. 

 KEMPSTON, BOURNEMOUTH, 

 Aug. \6th t 1921. 



