IleAerocera from Costa Rica. 359 



costa near base. Uiiderneatli dark grey ; the outer half of 

 costa of fore wings shaded with buff; the basal and inner 

 area of hind wings white. 



Elxpanse 20 mm. 



Hnh. Sixola. 



Near A. hamp^oni\ Dogn. 



Agiflla suhciiierpa, sp. n. 



J . lit ad, collar, and thorax brownish grey : some whitish 

 liairs on basal joint of antennae. Abdomen dark grey above, 

 with lighter grey hairs at base and on terminal segment. 

 Fore wings white ; the basal third of costa finely dark grey, 

 the outer two-thirds finely creamy buff; the inner margin 

 below fold dark grey. Hind wings : the base and inner 

 margin white, otherwise grey; the cilia white. Underneath 

 dark grey ; the inner area of hind wings white ; the costal 

 margin of fore wings as above. 



Expanse '27 mm. 



? . Similar to male, but with costa of fore wings white ; 

 the hind wings only tinged with grey at apex. Underneath 

 paler grey, the white on hind wings more extended. 



Expanse 28 mm. 



liab. Tuis, Juan Vinas, Los Bajos. 



Near A, sanctce johannis, Schs. 



Aqi/Ua albi'venis, sp. n. 



($ . Palpi dark brown_, fringed with whitish. Frons pale 

 buff. Vertex, collar, and thorax dark grey-brown. Abdomen 

 grey above, the lateral tufts and nnderneath whitish buff. 

 Legs white ; fore and hind tibiae streaked with dark grey ; 

 fore tibia black, with white rings. Fore wings : the costa 

 with light brown downturned scales, not reaching base ; the 

 cell and veins except submedian white; intervenal spaces 

 light grey, darker between 2 and 4 and at end of cell; the 

 inner margin fuscous grey. Hind wings white; fuscous 

 shadings on costal and outer margin. Underneath, the fore 

 wings fuscous grey, becoming paler on outer margin ; the 

 hind wings white, tinged with buff on costa. 



Expanse 26 mm. 



? . Frons white. Fore wings white, tinged with grey 

 between 2 and 3 near cell ; the inner margin dark fuscous 

 grey. Hind wings white ; a few fuscous scales at apex. 



Expanse 28 mm. 



Hab. Juan Vinas, Tuis. 



Section near .4. barbicosta. H. 



