Tlate XVIII. 



Larval Ktagis of Lophodonta ferruginen. 



Fig. 1. !^tage I; la, dorsal vie^v, enlarged; li, side view of first abdominal 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 ; 3ft, natural size. Providence, July 30. 



Fig. 4. Stage V and last; ia, dorsal view; 4i>, prothoracic segment, side view; 4c, second abdominal segment, side 

 view. Food jilant, white birch. Providence, Sept. 11. Erldgham del. 



328 



