566 THE BUTTERFLIES OF XEW ENGLAND. 



Egg (64 : 35). Sixteen to nineteen longitudinal ribs, prominent and sharply defined, 

 but slender and delicate, about .11 mm. apart, mostly reaching the summit; cross 

 lines quite prominent, l)ut delicate, only less distinct than the ribs, from .OG to .07 mm. 

 apart, not always continuous ^vhere they cross the ribs ; surface covered Avith rugu- 

 lose circular pits, separated from each other by half their own width, the centres 

 about .0075 mm. apart, the intervening raised portions glistening; micropyle rosette 

 .1 mm. in diameter, consisting (67:11) of about seven unequal kite-shaped cells, 

 radiating around a miu^ute central circle, and surrounded at ouce by much larger and 

 constantly enlarging subquadrate cells. Color toward maturity reddish brown. 

 Height, .8 mm. ; breadth at base, .8 ram. ; at summit, .23 mm. 



Caterpillar. First stage (72:5). Head (79:3) shining bronze black, furnished 

 with a few long, pale, curving hairs; mouth parts and whole lower part of head dull 

 luteous. Body dull honey yellow, the anterior half infuscated, the warts pale fuscous, 

 the hairs pale Ijrownish, a little curved. Legs and prolegs pale yellowish, tipped with 

 fuscous. Length of body, 2 mm. ; breadth of body, .4 mm. ; length of hairs, .28 mm. 

 Chrysalis (84 : 5). Livid brown and l)lackish, the former changing to ruddy brown 

 on the anterior half of the abdominal segments, and to the color of a dead leaf on 

 the posterior half of the same; the wing-cases are livid brown, marked with trans- 

 verse creases of black, and clouded with the same on the posterior half as far as 

 a line within an interspace's distance of the outer edge; the jointed members black, 

 narrowly anuulated with livid. Head black, with a transverse livid band at the ante- 

 rior extremity below and the parts surrounding the eyes of the same color; above, 

 head and thorax livid brown, inclining to cinnamoneous on the thorax, mottled with 

 black; abdomen with anterior half of segments black, the posterior half livid brown, 

 with a cinnamoneous tinge on first five segments, behind of a dead leaf color; the 

 anterior half of the laterodorsal spines are black, the posterior livid, and the same 

 color runs up on third to eighth abdominal segments between the spines, to the ante- 

 rior edge of the segment, forming a triangular patch, which, in the segments bearing 

 a spine at this point, covers the posterior half of the same. The last segment is 

 almost wholly black, as is the cremaster, the sides of which are coarsely punctured. 

 Length; 23 mm. ; greatest breadth, 8.5 mm. , breadth of head, 5 mm. 



Comparison with other species. The most noticeable diflereuces between this 

 species and the preceding are the following : cybele is larger than aphi'odite ; the 

 bright colors of the tipper surface are more deeply tinged Avith red in both sexes of 

 aprodite than in cybele ; the female of the latter lacks the faint olivaceous hue of 

 aphrodite, particularly on the outer half of the hind wings, and the vinous or fiery 

 tint on the basal half of the hind wings ; the basal half of both wings is much more 

 heavily and extensively begrimed with dusky scales in cybele than in aphrodite, and 

 the blackish patches at the base of the upper subcostal and costo-subcostal interspaces 

 of the hind wings are wholly wanting in aphrodite ; the markings of the upper surface 

 are heavier in cybele; the mesial stripe of the fore Avings crosses the lower median 

 interspace, and terminates on the submedian nervure, a very little further from the 

 base of the wing in cybele than in aphrodite; the mesial band of the hind wings is 

 bent a little more sharply in aphrodite, and the band itself is both more broken and 

 more distinct. The color of the under surface difl'ers, the comparative brightness of 

 the fore wings being much greater in aphrodite than it is on the upper surface of the 

 same, and the bufl' colors in the middle of the fore wings, next the costal border, are 

 thus brought into greater relief ; the silvery spots on the same wings are larger in 

 aphrodite and the cinnamoneous colors deeper; on the hind wings, the depth and 

 richness of the reds is A^ery marked in the female of aphrodite; the smaller round, 

 silvery spot in the cell is often entirely absent from aphrodite, but present in all speci- 

 mens of cybele Avhich I have examined ; the silvery spots of the outer i-oav are frequently 

 edged Avith l)lack in aphrodite, but not in cybele; Avhilc, hoAvever, the silvery spots are 

 nearly identical, the Avidth of the submarginal bufl' belt is A^ery different iu the tAvo 

 species, forming indeed the readiest mai'k of distinction; in cybele its usual interior 

 limit is the middle of the extra-mesial roAV of silvery spots, so that the outer halves of 



