Memoir 67 



Plate I 



1, Egg on leaf. 



EGG AND LARVA OF TAPHRCCERUS GRACILIS 



2, First-instar larva. 3, Second-instar larva; 4, Third-instar larva (ap, prothoracic 

 appendage; sh, chitinous shield of prothorax) 



(Drawn by Helen A. Sanborn) 



