366 OHIO EXPERIMENT STATION: BULLETIN 332 



PLATE XVIII 



THE WHITE MARKED TUSSOCK MOTH 



{tiemcrocampa leucostigma) 



Fig. 1. — The frothy egg mass on the outside of the cocoon, about natural 

 size. 



Fig. 2. — Adult female of the tussock moth clinging to the cocoon from 

 which she has emerged. Natural size. 



Fig. 3. — Adult male, slightly smaller than natural size. 



Fig. 4. — Elms, Cincinnati, Ohio, defoliated by tussock moth. 



Fig. 5. — Horse chestnut, Cleveland, Ohio, defoliated by tussock moth. 



Fig. 6. — Nymphs of a stink bug piercing the cocoon of the tussock moth 

 and feeding on the pupa within. 



