156 Annals Entomological Society of America [Vol. IX, 



lateral margin with the proximal two-thirds concave; abdom- 

 inal segments with a heavy, raised, slightly wavy line on the 

 dorsal and lateral aspects of the caudal margin, extending 

 ventrad to the proleg scars, a similar line along the cephalic 

 margin ending opposite the spiracles; two dorsal rows of tuber- 

 cle scars as in Samia. Length, abdomen retracted, from 20-30 

 mm., expanded, 25-35 mm.; girth about 40 mm. 



EXPLANATION OF PLATES. 



Plate V'. 



Ventral view of a pupa of Automeris io. 

 Lateral view of a pupa of Automeris io. 

 Ventral view of a pupa of Adelocephala bicolor. 

 Ventral view of a pupa of Hemileuca maia. 

 Dorsal view of a pupa of Hemileuca maia. 

 Ventral view of a pupa of Citheronia regalis. 

 Lateral view of a pupa of Citheronia regalis. 



Plate VL 



Ventral view of a pupa of Samia cecropia. 

 Dorsal view of a pupa of Samia cecropia. 

 Lateral view of a pupa of Samia cecropia. 

 Lateral view of a pupa of Telea polyphemus. 

 Wing sclerites of Telea polyphemus showing spines. 

 Ventral view of a pupa of Tela polyphemus. 

 Ventral view of a pupa of Philosamia walkeri. 



