98 MEMOIRS NATIONAL ACADEMY OF SCIENCES. vol. xn, 



discal spot surrounded by five or six reddish dots, an interrupted basal reddish line situated 

 halfway between the base of the wing and the discal spot. Extradiscal line scalloped, reddish, 

 more or less distinct, not undulating or very obbque; whig along the inner edge dull reddish 

 pink. 



o* . Hind wings pink on the inner edge, and of a faded brick-red hue on the costal edge; 

 bright yellow in the middle. A large discal spot black, with a minute white central line 

 surrounded by blue scales. Extradiscal line heavy, black; between this and the outer edge 

 is a heavy dull red-pink line. Fore wings beneath with a discal spot of moderate size, and an 

 extradiscal oblique firm line. Hind wings with only a small white discal spot, beyond which 

 is the straight extradiscal line. 



9 . The head and thorax rust-red ; fore wings grizzly rust-red ; then base with erect 

 irregular shaggy hairs; a basal zigzag whitish line formed of two scallops; extradiscal white 

 [or pale] line of eight scallops, the line not undulating; a faint irregular submarginal line. 



Hind wings dull brick reddish on the costal, outer, and inner edges, the middle inclosing 

 the ocellus and extradiscal line bright yellow, the submarginal line much deeper reddish than 

 the edge of the whig. Beneath, the ocellus of the fore wing is smaller in proportion than that of 

 the <? , but not so regularly round, being somewhat oval. Wings of both pairs of the same hue, 

 paler than above, with more ocherous scales. 



Expanse of fore wings, d 1 62 mm.; 9 SO mm. 

 Length of fore whig, <? 28 mm.; 9 37 mm. 

 Breadth of fore wing, o* 16 mm.; 9 22 mm. 

 Length of hind wing, o* 21mm.; 9 28 mm. 

 Breadth of hind wing, <? 16 mm.; 9 23 mm. 



Aberration. — One S . General color yellow, like the normal male, and is of the same size. 



Fore wings with the basal line broad, especially on the inner edge; it is interrupted behind 

 the cost a. Extradiscal line distmct on the costa and toward and on the hind [margin] dilating 

 into an irregular reddish patch on the inner angle. Discal spot on the upper side normal. 



On the underside of the fore wings tbfe discal spot is represented by a very large smoky 

 black spot consisting of a central round spot of the same size as the normal spot on this side 

 of the wing and centered by a small white irregular dot; beyond the black spot the black 

 suffused portion expands and extends to the extradiscal line, and is about 6 mm. in length; 

 it also extends inward from the discal spot and is interrupted by the yellowish veins. Outer 

 edge of the wing yellow; inner edge deep pink as in the normal <? . 



Hind wings as above, much suffused with black, since all the space from the normal black 

 portion to the extradiscal black ring which it includes is filled hi with coal black. The entire 

 black area is about 12 by 10 mm. in extent. The submarginal reddish line is twice as wide 

 as in the normal S , and much suffused, with some black scales, and the pink inner margin is 

 stained with black scales. Fringe as in normal c? . 



Hind wings beneath as in normal <? . 



Abdomen as usual. 



I am indebted to Mrs. A. T. Slosson for the opportunity of examining and describing this 

 interesting example. It was taken at light hi July, 1901, at Franconia, by Dr. W. C. Prune. 



[A form called argus by Neumoegen and Dyar, Canad. Entom. XXV (1893), p. 123, was 

 described as follows : 



& . Head, thorax, body, legs, and wings light yellow. Both wings uniform in color, with 

 some darker basal tints. On secondaries a prominent blackish-blue ocellus with white central 

 lunule, surrounded by an outer semicircular black line. 



Below a large black discal spot, with white central kernel on primaries, and faint traces 

 of the transverse lines on both wings. This aberration, which seems extremely rare, is imme- 

 diately recognized by its immaculate wings, showing only the large ocellus on secondaries. 

 Caught at Hoboken, N. J.] 



[A variety of A. io was taken by Snow in Gailinas Canon, N. Mex.] 



[Variety fusca Luther, Jn. N. Y. Ent. Soc, 1907, p. 131, was described from Rhode Island. 



