1552 THE BUTTERFLIES OF NEW ENGLAND. 



tumid, a very little fullest in the midfllo of each half, elevated a little and especiallj' in 

 front above the level of the eyes, forrainE; almost the entire summit, in contradistinction 

 from the front which forms nearly the whole face (in which point it differs from 

 nearly or quite all genera of Hesperidae), nearly half as long again as the front and 

 separated from the occiput Ijy two slightly, nearly continuous, curved lines; the front 

 lateral angles are cut diagonally behind the antennae. Antennae inserted at the front 

 margin of the summit, their inner edges separated by a space eriual to the diameter 

 of the eye, or nearly four times that of the antennal bases, the whole antenna about 

 two-thirds the lengtii of the abdomen, composed of twenty-live joints, of which thir- 

 teen form the club ; this is more than one-third of the whole antenna, cylindrical, a 

 little appressed, increases regularly in size up to the eighteenth joint, where it is as 

 broad as the combined lengtii of the seventeeth and eighteenth, and beyond which the 

 joints decrease, both in size and length, rapidly diminishing to a pointed apex, the final 

 joint being slightly proilueed and bent at an angle with the others, not more than one- 

 third the diameter of the stalk; the tapering portion, although made up of fully half 

 the joints of the club, is scarcely one-third the length of the basal portion and the 

 change of size is mostly on the upper surface, the lower being nearly straight; the 

 joints in the middle of tlie stalk are about three times as long as broad. Palpi rather 

 stout below, heavily covered with loose scales, beyond which the terminal joint, cov- 

 ered only with recumbent scales, protrudes wholly and conspicuously, the whole about 

 two and one-half times longer than the eye; basal joint very small, cup-shaped, the 

 anterior part of the apex slightly and tumidly produced, about one-fourth the length 

 of the middle joint; the latter large, tumid, straight, subovate, the base broadly 

 rounded, the apical half subconical but rounded, the apex: produced into a slight 

 neck upon which the terminal joint is seated, scarcely inclined forward; it is scarcely 

 three times longer than broad ; terminal joint exceedingly long and slender, tapering 

 very gently, mostly in its apical half, straight, very nearly as long as the middle joint, 

 but no broader than the apical half of the tongue. 



Prothoracic lobes very strongly appressed, laminate; when viewed from the front, 

 the inner and inferior margins straight and at right angles to each other, the upper 

 outer margin strongly arcuate, about two-thirds the length of the diameter of the eye. 

 Patagia closely resembling those of Hesperia. 



Fore-wing (42 :3) less than twice as long as broad, the lower outer angle falling a 

 little within the apical third of the costal margin; costal margin a little and pretty 

 regularly convex throughout ; outer margin gently convex ; apex well rounded. Costal 

 vein reaching the middle of the costal border; subcostal nervure distant from the 

 margin of the wing, its first nervule originating scarcely beyond the basal third of the 

 wing ; cell less than three-fifths the length of the wing ; first branch of the median 

 arising opposite a point midway between the base of the first and second subcostal 

 nervules; internal nervure inconspicuous, very short, not turned upward at the tip. 



Hind wing very elongated, half as long again as broad, strongly and regularly 

 rounded apically in the lower part of the subcostal region, elongated at the anal 

 angle ; the branches of the median vein closely approximate at their bases. 



Legs 2,3, 1; all the femora fringed beneath with moderately abundant and not 

 very long, nearly equal hairs. Femora 2, 1, 3; tibiae 2,3,1; tarsi 3, 2, 1. Fore 

 femora but little longer than the hind pair, three-fourtlis the length of the middle 

 pair ; fore tibiae two-thirds the length of the fore femora, three-fifths that of the 

 other tibiae. Leaf-like appendage of the fore tibiae very slender, attached at the 

 middle of the outer four-fifths of the joint, surpassing a little its extremity, nearly 

 straight, pointed at the tip and four or five times as long as broad ; other tibiae armed 

 at tip with a pair of long spurs, a little stouter in the (J than in the $ , the hind tibiae 

 with an exactly similar pair just before the middle of the outer two-thirds. Tarsal 

 joints 1, 2, 3, 4, 5, excepting on the fore legs, where they are 1, 2, 3, 5, 4, the apical 

 distinctly longer than the penultimate joint; fore tarsi of the length of the middle 

 femora, a little less than two-thirds as long as the hind tarsi, a little more than two- 

 thirds as long as the middle tarsi, — all with a triple row of minute, delicate spines, the 



