Bulletin of Cornell University Agricultural Experiment Station. XI.. 1SS9. 



A SAW-FLY BORER IN WHEAT. 



Ccphus pygmaeus. 



a, female beginning to oviposit; b, female with ovipositor inserted in straw; c, insect with wings 

 expanded ; d, straws cut by the larva ; e, larva in cell at base of straw. 



