1266 THE BUTTERFLIES OF NEW ENGLAND. 



the wing is a little irregular, showing a tendency to encroachments of the black along the 

 nervures, but in general preserves a nearly straight course almost parallel to the outer 

 limit of the inner, broad, pale band, though generally approaching it a little more closely 

 next the inner than next the costal margin ; the exterior limit of the band shows a 

 similar tendency to encroachment on the part of the black, especially above the median 

 nervnre, but as a whole it is slightly curved, opening inward ; its lower termination is 

 as far from the tip of the submedian nervule as the width of the'pale belt at this point ; 

 its upper crosses the base of the second superior subcostal nervule. Beyond this are 

 two, short, narrow stripes : the first and longest is slender, passes from next the 

 costal border to the upper median nervule, above is as broad as or slightly narrower 

 than the upper limit of one of the forks of the broad, pale belt, narrows below nearly 

 to a point, has its borders usually straight, and is sometimes broken into spots by the 

 presence of flecks along the nervules it crosses ; beyond this the principal superior sub- 

 costal interspace is crossed by a narrow, sublunulate, transverse spot, midway between 

 the last mentioned stripe and the submarginal series of luuules to be described ; this 

 series is composed of spots which are more or less lunulate below, quadrate and 

 transverse above, forming a continuous, nearly straight belt, subparallel to the outer 

 border, broken only by the distinctly black nervules, and extends downward from the 

 third superior subcostal nervule; its exterior border usually presents a uniform gentle 

 curve opening outward as far as the middle median nervule, the exterior edge of each 

 spot curving slightly and opening outward, from the upper median nervule downward ; 

 the whole is distant from the outer border by the width of an interspace in the middle 

 of the band, more than that above, less below; the extreme width of the band is no 

 greater than the upper portion of the stripe just outside the cell ; below the upper 

 median nervule it begins to narrow, and in the medio-submedian interspace seldom shows 

 more than a very slender, broadly curved, powdery, lunulate streak. Occasionally the 

 extra cellular markings of the under surface are faintly marked above. Fringe black, 

 rather obscurely and irregularly white tipped. Hind wings with the costal border very 

 strongly and rather regularly arched next the base, beyond gently and very regularly 

 convex; outer margin, above the middle of the upper median interspace, uniformly 

 deeply and abruptly crenate, the crenations forming nearly right angles, the general 

 direction of the whole straight and lying at an angle of about 125^' with the apical half 

 of the costal margin ; tail nearly as broad as an interspace, and so long that its tip is 

 as far from its base as is the middle of the cell ; rest of inner border gently crenulate 

 at right angles to the upper portion ; inner border with nearly the whole of its apical 

 fourth greatly, abruptly and roundly excavated. Wing traversed by two oblique, pale 

 stripes and one transverse pale stripe, which are all continuous with those of the front 

 ■wings, when both are naturally expanded; the first is a narrow, uniform, white stripe, 

 scarcely affected by greenish yellow, which, crossing the extreme base of the wing, runs 

 midway between the inner border and the median nervure, at first distinct, beyond the 

 middle of the wing powdery and gradually losing itself a little way beyond in the gray- 

 ish fiecking of this part of the wing ; the ne.xt is a broadband with rather distinct edges, 

 the inner border of which is straight or slightly curved, opening outward, extending 

 from the costal margin just beyond the tip of the precostal vein, and directed, as far 

 as half-way across the cell, straight toward the base of the lower median nervule; then 

 curving slightly outward it continues parallel to this nervure, and just outside of it 

 to the middle of the basal two-thirds of the interspace, where it curves around to meet 

 the opposite border and partially loses itself in the powdering beyond ; the exterior 

 border of the band, starting from the costal border, runs nearly parallel to the interior 

 border but gradually approaches it in the least degree, crossing the subcostal nervure 

 at its first divarication ; the outer band is more nearly transverse and crosses the wing 

 midway in position and direction between the previous band and the outer border ; next 

 the costal margin it is of equal breadth with the former but it narrows more rapidly, 

 with nearly straight borders and terminates at the middle of the medio-submedian inter- 

 space, or occasionally at the lower subcostal ner\Tile, with a rounded extremity similar 

 to that of the previous band. The central parts of the wing are rather heavily pow- 



