1800 BUTTERFLIES BEYOND NEW ENGLAND. 



spaces; there is a pre-marginal series of transverse, equal, piirplisli blue bars more or 

 less flecked -with white in the interior, forming a disconnected stripe. 



Beneath, the color of the two sexes differs as much as above : In the male, the /ore 

 xoings have much the general color of the upper surface but less pure in tone and ex- 

 cepting also that the basal half of the wing is much variegated by a series of tawny, 

 transverse bars in the cell, the outer next its extremity, very largely powdery with 

 silvery white scales, and a transverse, arcuate, mesial series of fulvous, longitudinal, 

 quadrate or triangular bars a little beyond the extremity of the cell. Hind wings buff, 

 paler in the outer than in the inner half, the latter being more or less ferruginous, the 

 two parts separated by a broken blackish thread ; there is also a transverse black- 

 ish thread crossing the upper half of the wing next the second divarication of the sub- 

 costal nervure, accompanied in the costo-subcostal interspace, as is also the outer 

 thread, by a number of silvery white scales, a few of which are also sometimes found 

 in the cell and at the extreme base of the costo-subcostal interspace; a pre-marginal 

 series of flat, silvery lunules margined outside and to some extent inside with black 

 scales. 



In the female the color of the /ore icings is that of the upper surface, excepting that 

 it is paler and less bluisji in tone externally; the extra-mesial series of spots is much 

 as above but intensified and is preceded in all the interspaces by long and large, quad- 

 rangular or triangular, powdered patches of blue scales which are also found marking 

 irregular, transverse bars in the cell ; the other outer markings of the upper surface 

 of the wing are scarcely repeated beneath, excepting in faint indications. Hind wings 

 dingy chocolate brown at base, bluish brown beyond, limited by a faint, interrupted 

 series of dark blue, slender, transverse bars, marking the same position as the limits 

 of the two colors above ; the silvery markings of the male are repeated vaguely and 

 generally with more of a decided bluish tinge. Expanse of wings, male, 9+ mm., fe- 

 male, 104 mm. 



Egg. Conoidal, truncated, depressed at summit, marked vertically by about eigh- 

 teen prominent, slightly wavy ribs, eight of which extend from base to summit, and 

 form around the latter a serrated rim or crown ; the remainder lie between these and end 

 irregularly at one-half to three-quarters distance from base, sometimes squarely at one 

 of the transverse striae, but often curve towards and unite with the long ribs ; be- 

 tween each pair of ribs are equi-distant, transverse striae, about twelve in all, each 

 one depressed in the middle and not often in line with the corresponding striae of the 

 adjoining sections; the spaces between the ribs and striae excavated roundly. Height, 

 2.2 mm. ; breadth at base, 2.3 mm. ; at summit, .85 mm. [The measurements are surely 

 much too great.] 



Caterpillar. First stage. Head rounded in front and at the vertices, depressed in 

 middle at top; color blackish brown, sparsely pilose. Body cylindrical, thickest at 

 first and second abdominal segments, tapering slightly toward either extremity; color 

 dull green, translucent; each segment from second thoracic to seventh abdominal 

 marked by a transverse row of eight elongated, mostly obovate, tubercular, dark spots, 

 the second on either side the dorsal line lying back of the rest ; on the eighth abdominal 

 segment a straight row of four spots, and behind this another of two .spots ; the first tho- 

 racic segment is narrow and is occupied dorsally by a blackish, oblong patch, on the front 

 of which are four small, rounded tubercles, and immediately behind each of the two 

 outer ones a similar tubercle ; in addition to these, on either side of this segment are 

 two spots like those upon the other segments ; from each of the tubercular spots 

 througliout spring one or two long black hairs, curved forward. Length, 2 mm. 



Second stage. Head black. Body same shape as before; color olivaceous, mottled 

 over the whole surface with brown ; armed with six longitudinal rows of long, fleshy, 

 black spines, each of which springs from a yellowish tubercle; these spines are some- 

 what tinted with fulvous at base, and from the sides and end of each proceed short, 

 curved, black hairs; legs and prolegs dull green. Length, 3.8 mm. 



Third stage. Front of head blackish brown, bristling with hairs; back of head, at 

 - the junction with segment behind, dull yellow. The segments from third thoracic to 



