118 



MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 



vein. The discal veins are very oblique, where they are straio^ht in Cithcronia: in tlie hind 

 wings the obliquity of the discal cells and elongated shape of the discal cell are more marked 

 than in Cithcronia. 



Fore legs with the tibia tliicker, wider than in Citheronia; the tiV)ial epiphysis being verj' 

 wide (tigs. 21, 21a). more so than in Citheronia. 



Coloration: Bodjr and wings yellow; wing.s with pale lilac blotches and spots; more or less 

 definite discal .spots and extradiscal line. 



Lana. — Body armed with short, stout spinose dorsal horns on second and third thoracic 



Fig. 15. I)istributi(_'ii \ji the guuu.s Kaelus. 



segments, but none on the prothoracic segment; caudal horn verj' short; a vestigial median spine 

 on ninth abdominal segment. Body with long hairs. No bands or stripes. 



Larva — Stage I. — Body armed with two dorsal branching prothoracic spines one-half as long 

 as those of the dor,sal .series of the two thoracic segments l)ehiiid; they are deeply forked, not 

 ending in a l)ulbous e.Kpansion. Body transversely banded. A high caudal horn, and one half 

 as high on the ninth segment; and a 5-headed spine on each side of the suranal i)latc. Tlie 

 horns become spinose after the lii-st molt, the body being clothed with hairs after the third molt. 



Pupa. — Body thick; maxillse long, over three times as long in proportion as in Adelocephala 

 and Anisota: cremaster stouter and a little shorter, and the spines over the body smaller in 

 proportion than in the two genera named. 



