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APPLIED ENTOMOLOGY 



Family Ceratocampidse (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 lighter, with some yellowish areas, 

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



FIG. 291. Regal Walnut Moth (Cilheronia regalis Fab.), about half natural size. (From 

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



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 little 

 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. 



