'itle, Contents, Indices to 



BULLETIN OF 



^ENTOMOLOGICAL 



RESEARCH 



ISSUED BY THE IMPERIAL 

 BUREAU OF ENTOMOLOGY. 



EDITOR: THE DIRECTOR. 



LONDON : 



THE IMPERIAL BUREAU OF ENTOMOLOGY, 



41, QUEEN'S GATE, S.W.7. 



1920-1921. 



All Rigrhts Reserved. 



