408 OHIO EXPERIMENT STATION: BULLETIN 332 



PLATE XXXIX 



Fig. 1. Leafy retreats of the larvae of the poplar leaf tyer. 'Fhese re- 

 treats are very easily mistaken for those of the brown tail moth. 



Fig. 2. The larvae of Abbott's pine sawfly (Lophyrus abbotti), about 

 natural size. 



Fig. 3. A small tree of the short leaf pine at Fleming, Ohio, defoliated by 

 the larvae of Abbott's pine sawfly. 



