LYCAENINAK: KI'IUKMI A KlMXAXrilK. 



987 



cation by the willli of :iii iiitcrspaci, an 1 mukiu:;, witli Ihu other spots of the 

 Interspace, equal ili.stiinces from the base of the wing; that in tlie snbcosto-median 

 interspace is a little less than lialf way from the tip of tlie cell to the outer border; 

 the fonrtli. with tlie sixth to the eiglith, form a nearly straijjlit line, curved very slight- 

 ly outward, parallel to the outer margin, the spot in the medio-snbmedian interspace 

 being nearly as far removed from the neighboring spot in the same interspace as that 

 Is from the base of the interspace; the llfth spot, in the upper median interspace, is 

 removed somewhat inward from the curve; the submargiiial series of continuous 

 orange lunules of the upper surface is repeated beneath, extending almost entirely 

 across the wing, becoming fainter and slightly farther removed from the outer 

 border in its course from the inner border upward ; it is margined above with pale, 

 obscure silver, often assuming the form of slight, sagittate spots; fringe pale, fusco- 

 argenteous. darkest at liase. 



Abdomen blackish alwve, with a violet lustre; beneath, whitisli, tinged very slightly 

 with straw-color. Appendages of male (34 : 3G) with the lateral alations of upper 

 organ bent abruptly downward with au appressed face before the middle, the droop- 

 ing portion gently tapering in its apical half to a rounded point; lateral arms a little 

 expanded on their distal horizontal half, the pointed apex upturned. Clasps elbowed 

 at the bullate base; beyond, the blade is many times longer than broad, expanded 

 slightly before the tip, which is pointed and turned a little inward and upward. 



Described from 323 , 89 . 



A pair from Canada (.Saunders) differ from others seen in having the under surface 

 of the hind wings of a paler, more silvery tint. 



Accessory sexual peculiarities. Besides the difl'erent markings of the upper sur- 

 face of the wings, the male has here some untoothed scales to be probably regarded as 

 androconia (46 : 35) ; these are quadrangular, with gently convex sides, broadly rounded 

 tip. and basal lobes of unequal width, the striations closely crowded and parallel; 

 they are slightly asymmetrical and nearly three times longer than broad. 



Egg (65 : 16, 23). Completely covered with minute, deep, circular pits averaging 

 .042 mm. in diameter and .0125 in depth, somewhat regularly disposed on the sides in 

 oblique rows, running at about an angle of forty-live degrees with the base; above, 

 the rows become confused and irregular, and on the summit the cells alter in shape 

 and size until they nearly vanish. Micropyle pit .085 in diameter and .05 mm. deep ; 

 the rosette (68 : 11) occupies the whole floor of the pit, and the cells seem to be par- 

 tially concealed by the high and perhaps overhanging walls; the central cell is cir- 

 cular, .002 mm. in diameter, and surrounded by four large cells, which are nearly 

 circular, being .017 mm. long in the axis turned toward the centre, and .021 mm. in 

 the transverse axis; the outer cells are nearly circular, .015 mm. in diameter; the 

 walls bounding the cells are delicate but distinct. Color milk white. Height, .475 

 mm.: breadtli. .84 mm. 



Caterpillar. First stage. Studied only from a specimen that had died w ithin the 

 egg, which would seem to show that it was dull yellow iu nature. Head fuscous. 

 Bristles pale; the longest upper bristles are .4 ram. in length, and the spicules 

 excessively minute; the lateral bristles are only .14 mm. long and.OOGo mm. in diam- 

 eter at base, the spicules comparatively conspicuous, near the base of the bristle 

 being as long as half the diameter of the bristle. Apparent length of body, .8 mm. 

 Head (79 : 41) about .2 mm. wide. 



Comparisons. This species lias often of late been considered as iden- 



