FIELD BOOK OF INSECTS. 



with two purplish red stripes and three rows of black spines 

 on each side; it is covered with white granules and has 

 a pair of long, black "lashes" on the second segment. 

 The adult female is much like the female senatoria but is 

 more thinly scaled and with a definite violet band along the 

 outer margin of each front wing. The male (Plate XLVIII) 

 is like the male senatoria but darker and the central areas 

 of the front wings are transparent, with definite boundaries. 

 The larva of A. stigma, on oak, chestnut, and hazel, is 

 brown, dotted with white; it has a very narrow, dusky, 

 mid-dorsal line and a wider one on each side along the 

 spiracles; body spines longer than in the other species. 

 The adult female is much like the female senatoria but. with 

 about half an inch greater wing expanse, is more heavily 

 scaled, and with a tendency to have the front wings, at 

 least, thickly dotted with black. The male is much like 

 its own female, but smaller and with a tendency to violet 

 along the outer margins of the front wings; the wings have 

 no translucent areas. The chrysalids are all much alike. 



The Rosy Maple-moth (Plate XLV) is 



Dryocampa sometimes, probably correctly, put in the 

 rubicunda . J J ' 



genus Amsota. Its larva feeds on maple. 



The pupa is somewhat shiny; and the adult, though vari- 

 able in color, may be known by being a fluffy combination 

 of rose color and pale-yellow, often tinged with pink. It is 

 most abundant in the Middle West but it is occasionally 

 injurious from Mississippi to New York. 



Citheronia 



Names applied to the adult and larva 

 respectively, Royal Walnut-moth and Hick- 

 ory Horned Devil, tell two of the food 

 plants of this species (Plate XL VI) ; there are a variety of 

 others, including butternut, ash, persimmon, sweet gum, 

 and sumac. The horns of the mature larva are reddish, 

 tipped with black, and are perfectly harmless. Perhaps 

 the best short description of the adults is by Kellogg: 

 "a rich brown ground-color on body and hind wings, with 

 the fore wings slaty gray with yellow blotches, and veins 

 broadly marked out in red-brown." 



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