Plate XVIII. 



Larrnl stages of I.ophodontn feiruci'inen. 



Fit;. 1. StoRe I: Id, dorsal view, eiilargcil; \h, side view of first abdoniiual segment, enlarged. 

 Fig. 2. Stage III; 2a, dorsal view, enlarged; 26, front view of head; 2c, second abdominal segment. 

 Fig. 3. Stage IV; 3a, dorsal view, enlarged; 36, natural size. Providence, July 30. 



Fig. i. Stage V and last; ia, dorsal view; 46, protlioracic segment, side viejv; 4c, second abdominal segment, side 

 view. Food plant, white birch. Providence, Sept. 11. Bridgham del. 



328 



