1434 



THE BUTTERFLIES OF NEW ENGLAND. 



yellow, darker nest the anal angle, rather broatlly interrupted, but only on the basal 

 third, by dark brown scales at the nervure tips. 



Beneath of the same general color as above. Fore wings with the spots of the upper 

 surface exactly repeated, the apex more or less extensively powdered with white or 

 pale lilac scales, giving this portion of the wing a more or less decided hoary tinge or 

 rosaceous bloom, which, when most conspicuous, brings into relief a short, slender, 

 dusky, transverse striga, just beyond and below the outer costal spots, bent at right 

 angles on the lowest subcostal nervule, and crossing the interspaces on either side of it ; 

 the inner border is pale or yellowish as far as the submedian nervure ; outer margin 

 narrowly and indistinctly marked with a black line; fringe much as above, but with 

 rather more distinct markings. Hitid loimjs traversed, above the submedian nervure, 

 by two distant, equal, not very broad nor conspicuous, arcuate, and a little sinuate, 

 dusky, transverse bands, generally darker at their edges than elsewhere, subparallel to 

 each other and to the outer margin ; the exterior edge of the inner band crosses the last 

 divarication of the median and subcostal nervures ; at the upper subcostal nervule it 

 is broken and forked, and is represented in the interspace above by two subquadrate 

 patches, the outer the larger, its interior edge crossing the middle of the interspace, 

 the inner in the middle of the basal half of the same; the outer band crosses the 

 ■wing midway between the inner band and the outer border; it is generally a little 

 broader at its lower extremity — about half the width of the cell — and is more irreg- 

 ular in outline than the inner band, often changing its course in every interspace; 

 the wing is besprinkled with white or pale lilac scales, usually infrequent, sometimes 

 wanting within the outer band, generally present, however, along the inner border, 

 and making the wing conspicuously hoary beyond the outer band, or at least in the 

 outer half of the space beyond it, sometimes edging the exterior limit of the band 

 in the lower half of the wing; outer margin delicately edged with a black line; 

 fringe much as on the upper surface, but usually more inf uscated below the median area. 



Abdomen of the general color of the wings, flecked sparsely above, rather abundantly 

 below, with pale, dull yellow scales, the apex of the scale at the extreme tip of body 

 of the same tint. Upper organ of male appendages (35 : 38) having the hooks as long 

 as the centrum, widely separated, but parallel and straight, the apex a little curved 

 downward ; lateral arms scarcely reaching the middle of the hooks ; clasps fully two and 

 one-half times longer than broad, the basal two-thirds equal, with a slight, broad, 

 angular elevation at the middle of the upper edge ; upper lobe marked only by an 

 incision half across the blades, curving a little toward the base ; beyond this the clasp 

 tapers rapidly to a bluntly angulated extremity. 



Described from 16 ? . 



Egg (66 : 0). As represented in the figure by Mrs. Peart, the egg is slightly broader 

 than high, with about fourteen or fifteen slender, slight, vertical ribs and the cross 

 lines so frequent as to break the surface into cells seven or eight times broader than 

 high. Apparently it diflers from that of T. pylades in being more oblate and with 

 fuller sides. 



Caterpillar. Last star/ e (76: 32). Head (80: 6) black, minutely scabrous, covered 

 with a dense pile of golden brown or tawny hairs with a few intermingled black ones, 

 the median suture rather deeply impressed above. Ocelli, jaws and antennae all 

 piceous, as well as the neck. 



Body dull mahogany brown tinged with luteo-olivaceous, profusely sprinkled with 

 dirty, pallid wartlets, each giving rise to a very short, scarcely tapering, minutely 

 clubbed hair, generally luteous, often black or black tipped, the black ones most abun- 



