South American Micro-Lepidoptera. 251 



Agriastis, n. g. 



Head smooth; ocelli present; tongue developed. Antennae f, 

 in (J simple, basal joint elongate, without pecten. Labial palpi 

 long, recurved, second joint thickened with appressed scales, more or 

 less expanded towards apex above, terminal joint as long as second, 

 moderate, acute. Maxillary palpi very short, filiform, appressed 

 to tongue. Posterior tibiae clothed with hairs above. Fore -wings 

 with tufts of scales on surface; lb furcate, 2 from towards angle, 

 7 and 8 stalked, 7 to costa, 11 from middle. Hind-wings 1, elongate - 

 trapezoidal, apex obtuse, termen hardly sinuate, cilia over 1 ; 3 and 

 4 connate, 5 nearly parallel, 6 and 7 closely approximated towards 

 base ; a fringe of hairs from lower margin of cell towards base. 



Type A. peloptila. Differs from Battaristis by the tufts 

 of scales on fore-wings. Untomia cenelpis, Wals., belongs 

 to this genus, and Gelechia viretella, Zell. 



Agriastis prasina, n. sp. 



$. 15 mm. Head and thorax olive-green, face whitish. Palpi 

 blackish with a few greenish specks, ajjex of second joint white, 

 terminal joint whitish, towards ajiex yellowish. Abdomen dark 

 grey. Fore-wings elongate, rather narrow, costa gently arched, 

 apex obtuse, termen obliquely rounded; olive-green, irregularlj' 

 sprinkled with whitish; black basal dots on costa and in middle; 

 small black triangular spots on costa at |, before middle, and before 

 subterminal line; some raised scales in disc about i, and towards 

 dorsum before middle ; a small black spot towards costa before 

 second costal spot; stigmata black, discal approximated, second 

 larger, plical obliquely before first discal ; subterminal line obscure, 

 whitish -green, from f of costa to tornus, somewhat sinuate inwards 

 on upper half ; two blackish dots on costa towards apex and termen 

 beneath apex : cilia grey sprinkled with whitish, basal third light 

 green. Hind-wings dark fuscous ; cilia grey, darker towards base. 



British Guiana, Mallali, in March {Parish); one 

 specimen. 



Agriastis peloptila, n. sp. 



(J $. 14-15 mm. Head and thorax pale ochreous partially 

 tinged with brownish. Palpi light ochreous more or less sprinkled 

 with dark fuscous, terminal joint and apex of second ochreous- 

 whitish. Abdomen dark grey. Fore-wings elongate, narrow, costa 

 gently arched, apex obtuse, termen obliquely rounded; ochreous 

 irregularly sprinkled or mixed with whitish, with some dark fuscous 



