1044 THE BUTTERFLIES OF NEW ENGLAND. 



broad, rather broad and woU rounded at base, beyond tapering, especially along the 

 outer border, the apical half one-tliird as broad as the base, nearly equal, the tip nar- 

 rowing and bluntly pointed. 



Fore wings (40: 2) scarcely two-thirds as long again as broad, the costal margin a 

 little expanded at the very base, considerably convex on the basal and apical fourth, 

 the middle half rather flattened ; outer margin nearly straight, slightly hollowed near 

 the middle, directed ,at scarcely less than a right angle to the extreme part of the cos- 

 tal margin, tlie angle scarcely rounded off; inner margin almost sinuous, the basal 

 half, or rather more, gently convex, beyond about straight, the angle rounded off. Cos- 

 tal nervure terminating at some distance beyond the middle of the costal border; sub- 

 costal nervure witli three liranches, the first arising but little beyond the middle of the 

 cell; second arising shortly before the apex of the cell and the third an equal distance 

 beyond the same, forking at a distance beyond its base about equal to its distance 

 from the second ; cell half as long as the wing, slightly longer in the $ than in the ? . 



Hind wings with the costal border pretty strongly and roundly expanded at the very 

 base, beyond which tlie border is pretty strongly and regularly convex, the height of 

 the curve before the middle, and slightly greater in the $ than in the $ ; the outer 

 border bent at a little more tlian a riglit angle to the outer half of the costal border, 

 nearly straight in the upper third, slightly convex beyond, fuller in the upper lialf in 

 the $ tlian in the (J, receding ratlier rapidly below the lower median nervule; the 

 inner border very greatly, abruptly and squarely expanded at the very base, beyond 

 straight, receding and hollowed slightly beyond the tip of the internal nervure, the 

 angle rounded off. Precostal nervure very short, directed upward ; vein closing the 

 cell striliing the subcostal and median nervures at about equal distances beyond their 

 second divarication. 



Fore tibiae but little more than half as long as the middle tibiae; fore tarsi fully as 

 long as the fore femora and not mucli shorter than the middle tarsi, altliough only 

 two-thirds .is long as the liind tarsi; hind femora only one-half (J) or about three- 

 fifths ( $ ) as long as the middle pair. Tibiae furnished beneath, near either side, 

 with a row of not very frequent, very shoi't and slender spines, on the sides and upper 

 surface with numerous, very similar spines at somewhat similar distances apart. On 

 the sides disposed with some regularity in distant, rather obscure rows ; furnished at 

 the tip beneath with a pair of rather short, slender, equal, apically tapering spurs. 

 First joint of tarsi equal in length to the second, third and fifth together, the second, 

 fifth, third and fourth diminishing regularly in size in the order mentioned; all the 

 joints furnished with numerous small, slender spines over the wliole surface, disposed 

 In irregular rows above and on tlie sides, in four nearly equidistant, very regular rows 

 beneath, the apical spines of each joint in tlie outer rows very sliglitly larger than the 

 others; claws rather large, widely spreading, .slender, compressed, strongly curved, 

 each bifid for nearly half its length, the inner brancli parting from the other and curv- 

 ing still more strongly, both finely pointed; paronychia simple, consisting of a long 

 and broad quadrate lobe outside of the claw, as long as it and concealing it laterally ; 

 pulvillus of medium size, longitudinally obovate, projected nearly to the tip of the 

 claw on a slender pedicel. 



Second abdominal segment one-fourth as long again as tlie first or third, the latter a 

 little longer of the two; beyond, the segments decrease regularly in length until the 

 eightii is reached, which in tlie male is broadly produced above to a convex, rounded 

 plate, making this segment nearly equal to the fifth, sixth and seventh together. 

 Hook of upper organ of male stout, strongly compressed, tapering at the base and 

 well arched. Clasps tapering a little, very deeply and almost squarely excised at the 

 upper posterior angle, to half the depth of the apex, and at either limit of the ex- 

 cision produced to a laminate tooth; within, near the centre, an inward directed, 

 rather stout, cylindrical finger, beset with prickles. 



Egg. Subfusiform liut liroadly rounded at base, so as to be only twice as liigh as 

 broad, witli slight, vertical ribs and coarse and distinct transverse lines. 



Mature caterpillar. Head rounded quadrate, a little broader than high, well 



