Ileterocera from Costa Rica. 21 



and brown. Head, collar, and thorax fuscous brown. 

 Abdomen dark with pale segmental lines. Fore win^^s dark 

 lilacine grey tinged witli brown ; base to antemedial paler, 

 crossed by a faint lunular subbasal line, and with a dark 

 spot at base of median; antemedial yellowish buff, somewhat 

 incurved across cell, outbent on inner margin, outwardly 

 dark-edged, and followed below cell by an oblique velvety 

 brown-black spot; orbicular horizontally oval, dark-edged, 

 containing some yellowish scales; reniform large, broad, 

 velvety brown-black, crossed by a crescent-shaped yellow 

 line; postmedial yellowish, finely edged with brown-black 

 scales, and followed by a dark spot below vein 7 ; an irre- 

 gular line of dark scaling subterminally, forming a spot 

 near apex; small termitial black spots. Hind wings dull 

 brown-grey. Wings below paler; markings more pro- 

 nounced on hind wings, with larger discal spot; a post- 

 medial line and subterminal shade, which on costa of fore 

 wings is broad and preceded by a pale shade. 



Expanse 33 mm. 



Ilab. Poas. 



GOROSINA, gen. nov. 



Female. — Antennai ciliated. Palpi : second joint long, 

 obliquely ascending; third short, angled back; both joints with 

 long tringe of hair above; Fore wings broad; costal margin 

 convex, apex acute; outer margin sligiitly oblique; vein 3 

 from well before lower angle; 4 and 5 from lower angle ; 

 6 from upper angle; 7-10 stalked ; 11 free. Hind wings: 

 veins 3 and 4 stalked ; 5 from lower angle ; 6 and 7 on 

 short stalk. 



Type of genus, Gorosina ampla, Sclis. 



Gorosina ampla, sp. n. 



$ . Palpi dark brown, fringed above with long fuscous 

 hairs, thinly irrorated with grey ; base below shaded with 

 buff. Head, collar, and thorax fuscous, irrorated with grey, 

 the patagia outwardly reddish brown. Abdomen above 

 brown shaded with fuscous ; pale lateral segmental spots. 

 Fore wings light brow^n, darker on basal half ; costal margin 

 tinged with grey; inner margin finely fuscous; a fine dark 

 antemedial line, angled on costa, inbent to median, out- 

 curved below cell, and again somewhat inbent; spots wiiitish 

 grey, the orbicular small, the reniform moderate, somewhat 

 inbent; medial line beyond cell, fuscous brown, angled at 

 vein 8, and slightly sinuous to middle of inner margin ; 



