210 OHIO EXPERIMENT STATION: BULi^i^, 



EXPLANATION OF PLATE V. 



Fig-. 1. Egg- mass of white marked 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 a branch 

 of horse chestnut. 



