PLATE XIII. 



CALLOSAMIA PROMETHEA. 

 Larval stages. 



Pig. 1. — Fourth stage. Bridgham del. Food, wild cherry; August 7, 1888. Packard notes: " Incomplete, no spinulea 



drawn," also "this is Riley's fifth stage." 

 Fig. 2. — Last stage, going to spin. Joutel del. 2b, tubercle on penultimate segmenl of another larva, but only one had 



this tubercle black-tipped. 

 Fig. 3. — Callosamia promethea; pupa. 



CALLOSAMIA ANGULIFERA. 



Larval stages. Bridgham del. Food, tulip tree. 



Fig. I. — First stage, July 8. la, front of head. "The seven spines on the light tubercles are light colored and trans- 

 parent, and have no black outlines." (Bridgham.) 

 Fig. 5.— Larva, July 13. 2a, sixth segment. Presumably second stage, but nol so marked. 

 Fig. 6a. — Head of larva, July 15. Presumably third stage. 

 Fig. 6b. — Dorsal tubercles of same larva. 

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