Plate XXXI. 



Larval shiyes of Heterocampa (jiittiritta. 



1. H. guttivitta, Stage I; la, side view; 1« . prothoracic antlers; 16, 16', antlers on first abdominal segment; 

 If, Ic', antlers ou second to seventh abdominal segments: Id, If?', antlers on eighth abdominal segment. 



2. H. guttivitta. Stage II; 2a, side view. 



Fig. 



Fig. 



Fig. 



Fig. 4, 4a. S. gutt 



Fig. 5, 5a. H. gutt 



Fig. 6, 6a. H. gutti 



3. H. guttivitta, end of Stage II, 3a, side view. 



ritta. Stage III. 

 vitta, Stage IV. 

 vitta, end of Stage IV. 



Fig. 7, 7a. H. guttivitta. Stage V. Bridgham del. 



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