392 EXOTIC MICROLEPIBOPTEKA. 



reaching half across wing, widest on costa and narrowly produced 

 along costa towards base ; a faint greyish spot above middle 

 of disc, and a hardly traceable transverse mark above middle of 

 dorsum ; two dark fuscous dots transversely placed on end of cell ; 

 a dark grey fascia more or less mixed and broken with white suf- 

 fusion from I of costa to dorsum before tornus ; some dark grey 

 irroration towards apical part of costa and termen ; four or five 

 sometimes connected small dark fuscous praemarginal sj)ots round 

 apex : cilia white, median thii'd grey, apical third suffused with 

 grey round apex. Hindwings ochreous-whitish, tinged with grey 

 towards apex and along termen ; costal margin expanded on basal 

 half, with long rough projecting "hairscales suffused with dark grey 

 beneath, and long subcostal pencil of whitish-ochreous hairs lying 

 beneath forewings ; cilia ochreous-whitish, with pale greyish median 

 shade. 



Bkitish Guiana, Bartica, in December and January (ParisJi); 

 four specimens. 



Antaeotricha acronephela, n, sp. 



J . 18 mm. Head white, face tinged with grey. Palpi light 

 grey, towards apex whitish. Antennal ciliations 1|. Thorax 

 white. Abdomen pale greyish. Forewings elongate, rather 

 narrow, costa gently arched, apex rounded, termen rounded, 

 hardly oblique ; white, tinged with ochreous in centre of disc ; 

 a dark grey streak along costa from base, with four irregular 

 suffused lighter projections between base and |, posteriorly merged 

 in a dark grey blotch occupying apical third of wing and crossed 

 by an indistinct whitish shade from ^ of costa to tornus ; two dark 

 fuscous dots in disc on anterior edge of this blotch, behind which 

 is some slight whitish irroration ; three short indistinct bars of 

 greyish suffusion from dorsum between ^ and blotch ; a white 

 denticulate line along termen : cilia grey. Hindwings pale grey, 

 towards base whitish-tinged ; a long whitish-ochreous subcostal 

 hairpencil lying beneath forewings; cilia whitish, with two 

 greyish shades. 



British Guiana, Bartica and Mallali, in December and March 

 (Parish) ; two specimens. 



Antaeotricha thesmophora, n. sp. 



2. 18-20 mm. Head white. Palpi white, second joint fuscous 

 except apex, terminal joint with extreme base and anterior edge 

 towards apex fuscous. Antennal ciliations 1. Thorax white, with 

 suffused grey central patch. Abdomen grey. Forewings elongate, 

 rather narrow, costa gently arched, apex rounded, termen rounded, 

 vertical ; ^^•hite ; markings dark fuscous-grey ; an oblique blotch 

 from base of costa to fold ; an irregular transverse streak at |, 

 interrupted in disc ; a small spot beneath fold before middle, and 

 two small cloudy spots on dorsum towards middle ; two small 

 spots on costa before and beyond §, and two transversely placed 



