PLATE XUV 



Fig. I. — Wooden boxes, 14 by 12 by 3 inches in size, used in obtaining pupae of 

 fruit flies. The upper box, with a coarse screen bottom, contains the infested fruit; 

 from which the larvs drop through the screen into the lower box containing dry 

 sand. Original. 



Fig. 2. — Contrivance used for keeping the infested fruit free from the sand and 

 bringing the emerging larvs to a central container where they may be gathered 

 quickly. Original. 



