348 LEPIDOPTERA OF NORTH AMERICA. 



spurs. Wings long, narrow. Male. Antennae slightly pectinated. 

 Female. Antennae serrated. 



1. H. caryae Harris. Ins. Mass. 2d ed. p. 279. 



Color, light yellow-ochre ; the fore wings are long, rather nar- 

 row, and almost pointed, are thickly and finely sprinkled with little 

 brown dots, and have two oblique brownish streaks passing back- 

 wards from the front edge, with three rows of white semitranspa- 

 rent 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 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 curved. 



Larva covered with short spreading tufts of white hairs, with a 



row of eight black tufts on the back, and two long, slender, black 



pencils on the fourth and on the tenth ring. The tufts along the 



top of the back converge on each side, so as to form a kind of 



ridge or crest ; and the warts, from which these tufts proceed, are 



oblong-oval and transverse, while the other warts on the body are 



round. The hairs on the forepart of the body are much longer 



than the rest, and hang over the head; the others are short as if 



sheared off, and spreading. The head, feet, and belly are black ; 



the upper side of the body is white, sprinkled with black dots, and 



with black transverse lines between the rings. 



United States. 



Harris. 



2. H. tesselaris Sm. Abb. Figured in Sm. Abb. pi. 75. 



Faintly tinged with ochre-yellow ; their long, narrow, delicate, 

 and semitransparent wings lie almost flatly on the top of the back ; 

 the upper pair are checkered with dusky spots, arranged so as to 

 form five irregular transverse bands ; the hind edge of the collar, 

 and the inner edges of the shoulder-covers are greenish-blue, and 

 between the latter are two short and narrow deep yellow stripes ; 

 the upper side of the abdomen and of the legs are deep ochre- 

 yellow. 



