PLATE VIII. 



SAMIA CECROPIA. 



Fig. 1. — Lasl stage of larva, natural size; form with red thoracic t ubercles; August is, food white birch. Bridgham del. 



SAMIA GLOVERI. 



Larval stages. Joutel del. 



Fin. 2. —First stage. The hairs are light (jet black in cecropia). 



I'n;. :!. -Second siai;e. From two different larvae. "The color ranges through various combinations of yellow and 



yellowish green and black: tubercles always bright orange yellow, only the spaces between varying as 



In amount of black, yellow, and green." 

 Fig. 4. — Third stage. Probably typical variety, but intergrades with the others. "The red horns turn black from 



the posterior end of larva; some have only a little red on horns of second segment." (Joutel. I Variety 



A of Joutel. 

 Fig. 5 — Third stage. Variety I! of Joutel. "Some larva' are like B 'all black horns), but have yellow body like A." 



(Joutel. i 

 Fig. (i. — Third stage. Variety C of Joutel. 

 Fin. 7. Third stage. Variety D. "A very dark specimen was about same color in beginning of stage, but with more 



I. lark mi each segment back of the tubercles." (Joutel.) 

 292 



