258 INSECTS OF MASSACHUSETTS. 



those of the other Arctians. The chrysalis is short, thick, and 

 rather blunt, but not rounded at the hinder end, and not downy. 

 The moths, which come out of the cocoons during the month of 

 June, are of a very light ochre-yellow color; the fore-wings are 

 long, rather narrow, and almost pointed, are thickly and finely 

 sprinkled with little brown dots, and have two oblique brownish 

 streaks passing backwards from the front edge, with three rows of 

 white semitransparent spots parallel to the outer 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 eighths to two inches and a quar- 

 ter 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 

 Carijct ; the first name meaning crested caterpillar, and the sec- 

 ond 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 exactly re- 

 sembling the foregoing in shape, but differing in color, being cov- 

 ered, 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 black- 

 ish ; the head is black, the body black or greenish black above, 

 and whitish beneath, and the legs are rust yellow. This is evi- 

 dent 1)' 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 vet succeeded 



