210 OHIO EXPERIMENT STATION: BULi^i-1--. *^4. 



EXPI.ANATIOK OF, PLATE V. 



Fig. 1. Egg mass of white nrarked tussock moth. 



Fig. 2. ^ Adult female moth about to oviposit upon her empty cocoon. 

 Slightly reduced. 



Fig. 3, Full grown larva. 



Fig. 4. Mass of cocoons spun in a cavity on the underside of ii branch 

 of horse chestnut. 



