NYMIMIALINAK: AIUJVNXIS ATLANTIS. 



573 



iipically on the subcosto-iiu'dian interspace as on the upper side; the outer border is 

 dari< oinnanioneous, more or less enlivened witli buft" (but sometimes not at all) alonjj 

 the middle of tlie Aving, and especially near the middle of tlie interspaces ; beloAv the mid- 

 dle median nervure the margin is almost entirely buft' or orange buff", with a cinnamo- 

 neousline marking its interior border, but fading out before attaining the submedian 

 nervure; fringe as above. Iluid inwjs very tlarl< brownish red, the female sliglitly 

 darker than the male ; a streak of I)utt" follows the upper edge of the costal nervure 

 t)eyond the precostal nervure, flecking also both edges of the subcostal and median ner- 

 vurcs as far as tlie limit of the cell, and the suljmedian nervure for half its course, 

 forming smaller or more distinct patches of the same in the middle of the cell above, 

 and at the base of the subcostal interspaces, and often supplanting the normal silvery 

 spot beyond the cell and flUing the base of the median interspaces with powdery scales ; 

 these are also found throughout nearly the whole of the submedio-iuternal interspace ; 

 in the female this buff" is usually more or less decidedly tinged with greenish ; the basal 

 tlurd of the costal border and the whole of the inner mai'gin as far as the tip of the sub- 

 median nervure, is edged with silvery; the basal silvery spots are as in A. aphrodite; 

 i)cyond is a curving row of silvery spots, normally Ave in num))er, shaped and bor- 

 dered as in those of A. aphrodite, but the second — that in the upper subcostal inter- 

 space — and the external fragment of the cellular spot are frequently l)utt", instead of 

 silvery; the extra-mesial and submarginal rows of silvery spots are exactly similar to 

 those of A. aphrodite, the spots of the former row tipped externally with small 

 roundish spots of very dark brownish red, darker than the prevailing color, occasion- 

 ally, in the female, greenish; the outer row is edged exteriorly with a narrow black 

 line, and interiorly Mith a broad, dark, brownish red border; between the two rows is 

 a pretty broad bufl'belt, partaking of the irregular nature of that of A. aphrodite, but 

 broader, having the general average breadth of an interspace ; outer border reddish 

 broAvn or cinnamoneous, enlivened along the middle, but not next the nervures, 

 with buft" blushes ; fringe as on upper surface. 



Abdomen as in A. aphrodite. Appendages of male (33 : 36) : hook of the upper 

 organ of equal depth throughout and slenderer than in the other species; tip con- 

 siderably and delicately uncinate, but scarcely aided by the excision of the under 

 surface. .Clasps scarcely twice as long as broad, the apical half curved a little 

 upward, of nearly equal breadth throughout; upper border with a considerable abrupt 

 rounded lobe near the base, a slight angulated median one and the upper hinder angle 

 produced to a broad lobe, a little and obliquely truncate aliore where it is bristly, and 

 in general having a slight forward direction; the hinder edge of the clasp is broadly 

 rounded with a slight rounded prominence iu the middle ; upper process as in the pre- 

 vious species but shorter, being scarcely three times as long as broad. 



Descriljed from IS 5 , 3 ? . 



Malformation. In one specimen examined, the subcostal nervules of the fore 

 wing are peculiar, the third superior nervulc being removed toward the second and 

 the fourth toward the outer border, so as to make the origin of the third and fourth 

 at about equal distances from each other, the apex of the cell and the outer border. 



Aberrations. A. a. chemo. Mr. Albert G. Davis has sent me an interesting 

 surt"used female of this species, taken July 1, 1SS7, at Lake Chemo, ten miles north- 

 east of Bangor, Me., "flying with the ordinary form of A. atlantis, in a sunny glade in 

 the woods." The whole appearance of the insect is changed, and it has taken on a most 

 funereal aspect. The entire upppr surface has for a ground color a purplish black. 



