BOMBYCID^. 299 



The next group, the Ceratocampadce of Harris, is composed 

 of large moths, in which the hind wings scarce!}' extend beyond 

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

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



Eucronia Maicv Druiy 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. 



Hiiperchiria lo of Walker (Saturnia lo of Harris) is a little 

 larger than the preceding. The male is j-ellow 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, ^xi 

 The caterpillar is green, with spreading tufts of 

 spines, very sharp, stinging severely 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 Hiibner expands from five to six inches, 

 and its fore wings are olive colored, sj:)otted -with yellow and 

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

 red, spotted with olive, green and 3'ellow. The caterpillar is 

 spiny, having four large acute spinulated 

 spines on the anterior thoracic segments. It 

 feeds on the walnut, hickor}^ 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 

 j'oung larva, with two of the peculiar long hairs next the head 

 magnified. A much smaller species, which expands only 3.10 

 inches, is the C. sepulcraUs G. and E., which was discovered 

 at Andover, Mass., by Mr. J. O. Treat. It is purplish l)rown, 

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



