PREFACE. IX 



in many instances, is very wide-spread, though the observations in most 

 cases are extremely meagre and superficial. 



My task has been lightened by the kindness and generosity I have 

 everywhere experienced in regard to material. Large collections of 

 specimens have been presented to me by Miss Ethel Chawner, f.e.s.. 

 Rev. E. N. Bloomfield, m.a., Albert Piffard, Esq., f.e.s.. Dr. P. B. Mason, 

 F.L.S., and A. Adie Dalglish, Esq., F.E..S. ; much information has been most 

 kindly given me by the late Rev.T. A. Marshall, m.a., F.L.s.,and G. C. Bignell, 

 Esq., F.E s. ; and I am greatly indebted to the following for numbers of 

 bred or captured specimens : — F. C. Adams, Miss E. M. Alderson, Rev. C. 



D. Ash, Dr. J. H. Bailey, E. R. Bankes, A. Beaumont, E. C Bedvvell, 

 W. H. Bennett, Lieut.-Col. C. T. Bingham, R. C. Bradley, E. Brunetti, 



E. A. Butler, Prof. J. W. Carr, Dr. R. T. Cassal, Dr. T. A. Chapman, H. J. 

 Charbonnier, W. M. Christy, W. G. Clutten, J. W. Cross, C. W. Dale, 

 H. St. J. Donisthorpe, W. W. Esam, W. Evans, Rev. H. S. Gorham, J. C. 

 Haggart, A. H. Hamm, S. Image, W. J. Kaye, S. W. Kemp, J. H. Keys, 

 W. A. Luff, J. R. Mallock, A. M. Montgomery, Rev. F. D. Morice, K. 

 Morton, J. F. Musham, E. A. Newbery, F. H. Peachell, G. T. Porritt, 

 R. M. Prideaux, G. B. Routledge, E. Saunders, H. W. Shepheard-Walwyn, 

 A. Sich, F. W. Sladen, E. G. J. Sparke, Rev. A. Thornley, B. Tomlin, C. J. 

 Wainwright, C. J. Watkins, F. G. Whittle, J. Wigin and Col. J. W. Yerbury. 



R. McLachlan, Esq., f.r s., and C. G. Barrett, Esq., f.e.s., have rendered 

 valuable assistance in the technique and the classification of the hosts. 

 To Ernest A. Elliott, Esq., f.e.s., I owe the inception and completion of 

 the work. 



Where no authority is given, the record is in most cases my own. 



CLAUDE MORLEY. 

 Ipswich, J\/aj' /s/, /goj. 



