Reghtered at tfie G.P.O. for Transmission to Canada and New/dwtd,and By Magaztnt Post. 



VOL. X. Ser. B. Part 8.— pp. 149-172. AUGUST, 1988. 



The review 

 of applied 

 entomology 



SERIES B: MEDICAL 

 AND VETERINARY. 



ISSUED BY THE IMPERIAL 

 BUREAU OF ENTOMOLOGY. 





LONbON 



THE IMPERIAL BUREAU OF ENTOMOLOGY, 

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



Prico Sd. net. 



All Rights Reserved. 



