Plate XVIII. 
Larval aiages of Lophodoniafen'uginea, 
Fig. 1. Stage I; la, dorsal view, enlarged j 1?>, side view of first abdominal segment, enlarged. 
Fig. 2. Stage III; 2a, dorsal Adew, enlarged; 26, front view of bead; 2c, second abdominal segment. 
Fig. 3. Stage IV ; 3a, dorsal view, enlarged; 36, natural size. Providence, July 30. 
Fig. 4. Stage V and last ; 4fl, dorsal view ; 46, prothoracic segment, side view ; 4c, second abdominal segment, side^ 
view. Food plant, white birch. Providence, Sex»t. 11. Bridgham del. 
