LEPIDOPTERA. 279 



hind margin; the hind wings are very thin, semitransparent, 

 and without spots; and the shoulder-covers are edged within 

 with light brown. They expand from one inch and seven 

 ei"-hths to two inches and a quarter or more. The wings are 

 roofed when at rest; the antennae are long, with a double, 

 narrow, feathery edging, in the males, and a double row of 

 short, slender teeth on the under side, in the females; the 

 feelers are longer than in the other Arctians, and not at all 

 hairy ; and the tongue is short, but spirally curled. This kind 

 of moth does not appear to have been described before, and it 

 cannot be placed in any of the modern genera belonging to 

 the Arctians; for this reason I propose to call it Lophocampa 

 Carycc; the first name meaning crested caterpillar, and the 

 second being the scientific name of the hickory, on which it 

 lives. In England, the moths, that come from caterpillars 

 having long pencils and tufts on their backs, are called tussock- 

 moths; we may name the one under consideration the hickory 

 tussock-moth. 



In August and September I have seen on the black walnut, 

 the butternut, the ash, and even on the oak, caterpillars ex- 

 actly resembling the foregoing in shape, but differing in color, 

 being covered, when young, with brownish yellow tufts, of a 

 darker color on the ridge of the back, and having four long 

 white and two black pencils extending over the head from 

 the second ring, and two black pencils on the eleventh ring; 

 when they are fully grown they are covered with ash-colored 

 tufts, those on the ridge blackish; the head is black, the 

 body black or greenish black above, and whitish beneath, 

 and the legs are rust-yellow. This is evidently a different 

 species or kind from the hickory tussock, being differently 

 colored, and having the two hindmost pencils placed on the 

 eleventh and not on the tenth ring. I have not yet succeeded 

 in keeping these caterpillars alive until they had finished their 

 transformations. 



In my collection are specimens of a moth closely resembling 

 the hickory tussock in every thing except size and color. It 

 may be named Lophocampa maculata, the spotted tussock-moth. 

 It is of a light ochre-yellow color, with large irregular light 



