124 THE BUTTERFLIES OF NEW ENGLAND. 



very regularly and gradually in fulness, terminating a little beyond the apex of the 

 cell ; subcostal nervure with its second superior branch originating between the base 

 of the first branch and the apex of the cell ; the discoidal cell three-fifths the length of 

 the Aving and rather more than three times as long as broad ; median and submediau 

 nervures not enlarged at the base. Hind wings unusually long, in pai'ticular produced 

 in the subcostal region ; costal border very gently convex next the base, straight 

 beyond until near the tip ; outer border strongly but not regularly convex ; inner border 

 a little and pretty regularly convex. Subcostal nervure following for a short distance 

 the lower margin of the costal nervure ; the veinlet closing the cell striking the median 

 nervure beyond its last divarication and the subcostal nervure as far beyond its last 

 divarication as the greatest width of the cell ; the branches of the median nervure 

 originate scarcely further from the base than the corresponding branches of the sub- 

 costal nervure. The whole under surface of both wings is furnished with hairs as 

 well as scales. 



Andi'oconia very slender and elongated, broadest at the extreme, rounded base, 

 tapering to beyond the middle and terminating in a thread emitting lateral threadlets, 

 apically expanded and as long as the extreme width of the lamina. Tlie androconia 

 occur only on the upper surface of the front Avings. 



All the legs very hairy. Fore legs minute, cylindrical, the tibiae about one-fourth the 

 length of the hind tibiae ; tarsi scarcely longer than the ti))iae, consisting in the female 

 of five joints, of which the first occupies the basal half, the second, third and fourth 

 are equal and the fifth a mere minute conical projection ; in the male the second to 

 fourth joints coalesce ; leg wholly unai'med in the male excepting by the long concealing 

 hairs, Avhich do not expand laterally ; but in the female both tibia and tarsi are supplied 

 with a few very minute and very slender spines scattered irregularly over the upper 

 surface, but mostly on the sides and never at the tip of tlie joints. Middle tibiae four- 

 fifths the length of tlie hind tiljiae ; tibiae furnished on either side of the under surface 

 with a row of forward and sliglitly outward directed short spines, terminating at the 

 apex in a longer spur; upper surface with a few very short scattered spines ; first joint 

 of tarsi fully equal to the three succeeding together, which are about equal but decrease 

 in length successively, the fifth as long as the second; all furnished Avith a roAV of 

 short, forward directed spines on either side of the under surface ; between the rows 

 many others, varying in length and irregularly placed; claws Avell curved throughout, 

 pretty slender, rather bluntly pointed ; pulvillus small, longer than broad, of nearly 

 equal breadth ; paronychia forming on each side of the foot a slender, delicately taper- 

 ing and pointed ribbon, shorter than the claAv. 



Upper organ of the abdominal appendages stout, but slightly curved, rapidly nar- 

 roAving at the base of the hook; the latter sti'ongly and eqiially compressed, a little 

 curved, as long as the centrum, bluntly pointed at the tip ; sides of the centrum bearing, 

 near the base of the hook, a single slender, tapering, compressed, slightly arcuate, 

 backAvard directed appendage, fully half as long as the hook ; clasps rather stout, 

 buUate, of about the length of the upper organ on the basal half, about one-third as 

 broad as the entire length, beyond the middle rapidly narroAving, so that the apical 

 third is only about half as broad as the base, upper edge nearly straight, tip broadly 

 rounded or truncate ; Avhole blade regularly and considerably arcuate, Avlietlier vieAvcd 

 from above or from behind ; terminal third of the upper edge denticulate. 



Egg. Spherico-ovate, rather higher than broad, broadly rounded beneath, above 

 somcAvhat flattened but also Avell rounded, largest at about the middle of the loAvest 

 three-fifths, narroAver above than beloAv; sides, from very near the base to the micro- 

 pyle, furnished Avith a large number of low and broad, rounded, sometimes apically 

 pinched, irregular ribs, often zigzag in course, not ahvays extending the Avhole length, 

 often combining in dift'erent parts of the egg, and often presenting a more or less 

 beaded appearance from the transverse Avrinkles or slight lines Avhich traverse the egg 

 transversely ; next the base the ribs sometimes fade aAvay into pretty large granular 

 elevations, and upon the summit they become much smaller and more irregular, often 

 having a someAvhat spiral direction as they approach the micropyle. The latter is 



