The Association of Economic Biologists 



President 



Professor NEWSTEAl), F.R.S. 



Vice-Presidents 



Professor CARPENTER, M.R.I.A. 

 Professor STANLEY GARDINER, F.R.S. 

 Professor HICKSON, F.R.S. 

 R. STEWART MacDOUGALL, D.Sc. 

 A. E. SHIPLEY, Sc.D., F.R.S. 



Council 



Prof. B. T. P. BARKER A. D. IMMS, D.Sc. 



S. E. CHANDLER, D.Sc. Prof. W. MAXWELL LEFROY 



F. J. CHITTENDEN G. A. K. MARSHALL, D.Sc. 



A. D. COTTON Prof. H. G. PLIMMER, F.R.S. 



E. E. GREEN A. G. L. ROGERS 



Prof, P. GROOM, D.Sc. 



Hon. Treasurer 



J. C. F. FRYER, Esq., 



The Pathological Laboratory, 

 Royal Gardens, 

 Kew. 



Hon. Secretary 



S. A. NEAVE, Esq., 



89, Queen's Gate, S.W. 7 



CONTENTS OF Vol. IV, No. 4 



FAOB 



1. Ustulina Zonata (Lev.) Sacc. on Hevea Brasiliensis. By. A. Sharples, 



A.R.C.S., D.LC. (With Plates III— VIII and 1 Text-figure.) . 153 



2. A study of the Capsid Bugs found on Apple Trees. By F. R. 



Petherbridge and M. A. Husain. (With Plates IX — XI.) . 179 



3. Notes on the Strawberry Leaf Beetle (Galerucella tenella Linn.). 



By H. C. Efflatoun, F.E.S., M.R.A.C. (With 3 Text-figures.) 206 



4. Observations on Pimpla pomorum Ratz., a Parasite of the Apple 



Blossom Weevil (including a Description of the Male by Claude 

 Morley, F.Z.S.). By A. D. Imms, M.A., D.Sc. (With Plate XII 

 and 5 Text-figures.) 211 



5. A List of Coccidae affecting various Genera of Plants. By E. Ernest 



Green, F.E.S., F.Z.S. 228 



