1590 



THE BUTTERFLIES OK NEW ENGLAND. 



whitish straw j'ellow, overlaid at tlie extreme base witli davk brown and abruptly and 

 conspicuously though rather narrowly interrupted with the same at the nerviile tips. 

 Hind wrings uniform, rarely with a vague, ill-detlned, pale, narrow are, parallel to the 

 outer border, in the middle of the outer two-thirds of the wing, reaching neither 

 border ; the basal two-thirds of the wing usually flecked lightly with pale scales and the 

 nervures of the lower half of the wing fringed with long, pale greenish yellow hairs. 

 Fringe very pale straw yellow, the extreme base overlaid with dark brown, and beyond 

 inconspicuously interrupted at the tips of the nervules of the middle of the wng with 

 dark brown, which seldom reaches the outer limits of the fringe. 



Beneath of the same brown as above, but, excepting on the lower half of the fore 

 wing, uniformly and profusely flecked with very pale greenish yellow scales, giving 

 the wing a greenish gray appearance. Fore wings with the limitation of the flecked 

 and brown portion of the wing following the median nervure and the third median 

 nervule as far as the middle of the latter and then curving to the extremity of the lower 

 median nervule, the pale scales following the nervures slightly; the spots of the upper 

 surface are repeated beneath, the smaller ones occasionally obliterated, the others 

 usually larger, but, excepting in the unflecked portion of the wing, no more conspic- 

 uous. Fringe as above. Hind wings with a moderately small, pale yellow spot in the 

 middle of the basal two-thirds of the costo-subcostal interspace, a similar one in the 

 lower half of the outer two-thirds of the cell and a curving, bent, moderately narrow 

 series of partially connected , similar spots more or less tinged with greenish in the middle 

 of the outer two-thirds of the wing, commencing with a spot usually almost iudepen- 

 deut in the middle of the apical two-thirds of the costo-subcostal interspace, bent at 

 the lower subcostal nervule and terminating in the upper half of the medio-submedian 

 interspace just below the middle of the lowest median nervule; it varies in width in 

 different individuals and when very narrow may be obsolete above the middle of the 

 subcosto-median interspace, excepting the uppermost spot. Fringe as above. 



Abdomen dark brown, the sides and under surface heavily flecked with long, pale 

 olivaceous hairs and scales, beneath also annulate with pale greenish yellow at the 

 ends of the joints. Centrum of upper organ of male abdominal appendages (37 : 4) with 

 a strongly compressed and elevated, median, longitudinal lamina upon the summit, 

 the two halves of the hook scarcely separate, either from one another or the lateral 

 arms, with which they form a blunt conical prominence directed backward. Clasps 

 with the upper margin nearly straight, the base scarcely arched, the tip with a very 

 small, pointed tooth, scarcely recurved. 



Described from 9 specimens, of which 33,3?. 



Caterpillar. Last stage (77 : 29). Head pale, the sutures and eye-spots marked with 

 reddish. Body very pale green, the first thoracic segment with a rather slender and 

 short, black, dorsal shield; a .slender dorsal stripe of rather darker green, slightly 

 deeper again in tint below the spiracles. Length, 23.25 mm. ; height, i mm. Described 

 from Abbot's drawings. 



Chrysalis (85 : 45). Dull straw yellow, paler on the sides of the abdomen, tinged 

 with green, especially on the wings. Tongue, at least where it extends beyond the 

 body, dull orange. Length, 11mm.; height, 4 mm. Tongue tip beyond the wing lip, 

 4.75 mm. Described from Abbot's drawing. 



Distribution (29:7). Although apparently nowhere abundant, this 

 butterfly occurs in scattered localities throughout much of the Alleghanian 



