THE POTATO TUBEE MOTH. 



17 



The largest nimiber obtained in one day from a single female was 

 68, and this female on two consecutive days deposited 112 eggs. 



Via. 14.— Tender sterna of tomato killed by potato tuber-moth larva). Uncommon form of injury. 



(OrlRinal.) 



Tlic If'iigtli of tlic egg stage varies with the tcmperatiiro. 

 Kggs deposited in midwinter may require 34 days to hatch, while 

 those deposited during Jidy and August niiiy hutch in 5 days. There 

 55889°— Bull. 427—17 3 



