POTATO SPRAYING AND DUSTING. 21 



A Braconid parasite {Perilitus epitricis) of the flea-beetle was reared from adult 

 ■captured specimens. Its behaviour in relation to its host was closely observed in 

 the field, especially the manner of its oviposition. No figures were obtained of 

 the percentage of parasitism, but it is considered that the Hymenopteron is practically 

 ^ negligible factor of control. 



