1328 THE BUTTERFLIES OF NEW ENGLAND. 



edge of the antennal pits. Eyes very lai-ge, very full, naked. Antennae in.serted with 

 the anterior edge in tlie middle of the summit, separated at the base by the widtli of the 

 second joint, fully as long as the abdomen, with a gentle arcuate curve resulting from 

 a considerable bend near the base and the upward trend of the club ; composed of about 

 thirty-eight joints, cylindrical but expanding slightly both at the proximal and distal 

 ends, but especially at the latter, and particularly as the club is approached, which is 

 formed of about ten or eleven joints, its limits ill defined, the joints Increasing lu 

 thickness and decreasing in length very gradually ; it is compressed, triquetral, the 

 broadest face external, gradually increases in size over four or five joints, is then 

 uniform over several joints which are rather broader than long, until the antepenulti- 

 mate is reached when it begins r.ather more rapidly to decrease, terminating suddenly 

 with a completely triangular, greatly diminished, apical joint; by the upward trend of 

 the club the lower outer margins of the joints (which over the club are not enlarged at 

 the base) project angularly, giving the lower margin of this part of the antennae a 

 serrated edge ; the whole club is about seven times as long as its greatest breadth, and 

 more than twice as broad as the stalk. Palpi minute, moderately stout, not reaching the 

 middle of the front of the eye, heavily beset with scales and fringed below on the 

 inner side with scanty long hairs ; the basal and middle joints about equal, the last 

 minute, barely half as long as the middle joint. 



Prothoracic lobes obsolete. Patagia of moderate size, the posterior lobe long, tapering, 

 falciform, a little twisted, bluntly rounded at tip, fully five times as long as broad; 

 the inferior lobe short, .stout, triangular, the tip bluntly rounded, not much longer than 

 broad. 



Fore wings (41 : 4) twice as long as broad, the co.stal margin rather strongly con- 

 vex, curved more strongly for a. short distance just next the base, and again, to a 

 ' greater degree, in the apical half of the region beyond the cell ; outer margin very 

 broadly sinuous, being fullest next the lowest submedian nervule, and most emargi- 

 nate nest the upper median nervule; its general direction is at an angle of about 

 twenty-flve degrees with a line running through the middle of the cell, and the apical 

 angle is abruptly and the inner angle very broadly rounded ; the inner margin regu- 

 larly and gently sinuous. The first superior branch of the subcostal nervure arises 

 in the middle of the third quarter of the cell, the second at scarcely less than one-half 

 way between this and the apex of the cell; the third at the apex itself; and the 

 fourth at a little less distance beyond the third than it is beyond the base of the 

 second; cell considerably more than one-half as long as the wing, and three and a half 

 times longer than broad ; at the origin of its fourth branch the median nervure is 

 raised above where it would be were it in direct continuation of the basal half of the 

 nervure, by nearly the length of the cross vein uniting it to the subcostal; the cross 

 vein uniting the median and submedian near the base very delicate, directed down- 

 ward at riglit angles to the median, and curved slightly outward on its approach to the 

 submedian. 



Hind wings with the costal margin strongly shouldered at the base, the angle well 

 rounded, beyond gently arcuate to the tip of the costal nervure, where, except for 

 the gentle crenulation of the upper end of the outer margin, it melts into it; outer 

 margin considerably crenulated , somewhat abruptly angulated at the nervule tips, pro- 

 duced in the median region, its general curve, apart from the tail, pretty convex, the 

 two portions of the subcosto-median region separated by the tail, being inclined to 

 each other at angle of about 135° ; the upper median nervule bears at its tip a long 

 and stout spatulate tail, nearly half as broad again near the extremity as at the neck, 

 and about three times as long as broad; the inner margin is gently concave, very nar- 

 rowly and pretty strongly reflexed, a little expanded near the tip of the submedian, 

 the anal angle with a deep excision reaching half way across the medio-submediau 

 interspace by which, from this interspace, a piece nearly as large as half the tail is 

 removed. Subcostal nervure straight between the bases of the first two nervules or 

 scarcely bent just beyond the middle; vein closing the cell of the same length as that 

 uniting the bases of the second and third median nervules, and a little more than half 

 B.S long as that uniting the second and third subcostal nervules. 



