Ileterocera from Costa Rica. G75 



shade on cosla, tapering to a point at vein 3, followed by a 

 white line joining the downbent line from cell; a brown and 

 yellow subterminal thick line from costa to vein 2, followed 

 by a silvery-white line ; the termcn yellow ; cilia grey, with 

 a fuscous line at base. Hind wings white, basal half of cell 

 and inner margin shaded with brown ; a postuiedial yellow 

 spot, preceded and followed by an o))alescent white streak; 

 outer space above vein 2 yellow, with the usual terminal 

 black space cut by metallic lilac scales, and inwardly preceded 

 by a small white space from veins 0-7, crossed by a black 

 line between 6 and 7 ; the black spot nearest vein 2 sur- 

 mounted by opalescent blue and roseate scales. 



Expanse, ^ 11, ? 16 mm. 



Ilah. Esperanza. 



Tlie male has inner margin of hind wings without brown 

 shading. 



Argyractis volcanalls, sp. n. 



? . Palpi whitish buff. Head white. Collar dull grey- 

 brown in iront, shaded behind with yellowish white. Thorax 

 white, patagia tipped with yellow-buff. Abdomen above 

 buff-brown, the second segment dark grey ; faint pale seg- 

 mental lines. Fore wings : base of costa and a broad sub- 

 basal inbent line fuscous brown, enclosing a white shade on 

 inner margin and an ochreous shade above it ; also followed 

 below cell by an ochreous and white shade; costa beyond to 

 postmedial yellowish white, shaded with orange and crossed 

 by a dark medial line ; cell and space below it dull grey- 

 brown, crossed by the darker medial line, which is inbent 

 close to inner margin; tliis is medially white, expanding to 

 submedian between medial and postmedial lines ; a wliite 

 streak on discocellular; postm.edial dark brown, oblique from 

 costa to vein 3, sharply angled towards discocellular, en- 

 closing a small wiiite siiade, suffusing with the grey-brown 

 shade around discocellular streak, then downturned, and out- 

 angled below vein 2 ; this line is followed by a yellowish- 

 white shade, becoming orange, but is interrupted between 

 vein 2 and fold by a fuscous-grey streak to termen ; a sub- 

 terminal white streak from costa near apex to vein 3, in- 

 wardly shaded with dark brown, broadly on costa, and out- 

 wardly edged by a black line, not reaching apex ; termen 

 from apex to vein 2 orange ; an inbent white streak at 

 tornus ; cilia grey, shaded witii fuscous at base, cut by white 

 streaks between veins. Hind wings white ; a short grey- 

 brown streak at cell and vein 2, and a small spot near inner 



