BOMBYCID^. 299 



The next group, the Ceratocampadae of Harris, is composed 

 of large moths, in which the hind wings scarcely extend beyond 

 the tip of the abdomen, and the wings are often ocellated. 

 The larvae are longer than in the Attaci and more hairy. 



Eucronia Maia D'-ury has a narrow, lunate, curved white 

 line in the centre of each wing ; it expands from two and a 

 half to three inches, and is black with a common, broad, yel- 

 lowish white band. The caterpillar is elongated, with six 

 long branched prickles on each ring. It feeds on the oak. 



Hyperchiria lo of "Walker (Saturnia lo of Harris) is a little 

 larger than the preceding. The male is yellow and the female 

 reddish brown, with a faint eye-like spot on the fore 

 wing, and on the hind wings a large round blue 

 spot, margined with black and pupilled with white. 

 The caterpillar is green, with spreading tufts of 

 spines, very sharp, stinging severel}' when the insect ^'^' ^'^^' 

 is handled, and arising from a tubercle, of which there are six 

 on each ring ; the fascicles on the side are as represented in 

 Fig. 230. The pupa is thick, pointed at the tip of the abdo- 

 men, and the cocoon is thin, being made under leaves on the 

 ground. It feeds on the corn and cotton, to which it is very 

 harmful southwards, and also on the maple, elm, etc. 



Citheronia regalis HiJbner expands from five to six inches, 

 and its fore wings are olive colored, spotted with yellow and 

 veined with broad red lines, while the hind wings are orange 

 red, spotted with olive, green and yellow. The caterpillar is 

 spiny, having four large acute spinulated 

 spines on the anterior thoracic segments. It 

 feeds on the walnut, hickory and the persim- 

 mon tree, and spins no cocoon. A second spe- 

 "' "" ■ cies, C. Mexicana Grote and Robinson, has 



been described, as its name indicates, from Mexico : it is 

 more orange and less red, with duller yellow patches. Fig. 

 231 is a rude sketch (from the Harris Correspondence) of the 

 young larva, with two of the peculiar long hairs next the head 

 magnified. A much smaller species, which expands onl}- 3.10 

 inches, is the C. sepiiJcraJis G. and R., which w'as discovered 

 at Andover, Mass., b}' Mr. J. O. Treat. It is purplish brown, 

 without any yellow spots, and with a diffiise discal spot, centred 



