280 



APPLIED ENTOMOLOGY 



Family Ceratocampidae (The Royal Moths). — In this family are included 

 several very large moths and a few smaller ones. The Regal Walnut Moth 

 {Citheronia regalis Fab.) may have a wing-spread of six or seven inches (Fig. 291). 

 Its fore wings are rather dusky but the veins are lined with orange-red and there 

 are numerous yellow spots. The hind wings are Ughter, with some yellowish areas, 

 and veins hned as in the other pair. The stout body is brownish-orange with 



Fig. 291. — Regal Walnut Moth {Citheronia regalis Fab.), about half natural size. 

 Felt, N. Y. State Mus. Mem. 8.) 



{From 



narrow yellowish cross lines. The caterpillar (Fig. 292) which feeds upon various 

 trees, is four or five inches long when full-grown and has a green body bearing 

 numerous black spines and, just back of the head, a number of very long reddish 

 spines bending backward and tipped with black. The head is red. The terri- 

 fying appearance of this caterpillar has probably been the reason for calling it 



Fig. 292. — Full-grown larva of the Regal Walnut Moth, slightly less than half natural size. 

 {From Packard, Mem. Nat. Acad. Sci., IX, Part II.) 



"The Hickory Horned Devil." The insect is found from Massachusetts to Loui- 

 siana, Texas and Missouri, but is not very abundant and therefore does Uttle 

 injury. It feeds on the black walnut, butternut, hickory and a number of other 

 trees, and has once or twice caused some damage to cotton. It winters as a pupa 

 in the ground. 



