South American Micro- Lepidoptera. 271 



wings elongate, rather narrow, posteriorly dilated, costa gently 

 arched, apex obtuse, termen slightly sinuate beneath apex, hardly 

 oblique; violet-leaden-grey, somewhat sprinkled with ochreous- 

 whitish ; a fine irregular dark fuscous streak above middle from 

 base to near J, terminated with ochreous-whitish ; an irregularly 

 rounded subtriangular blackish whitish-edged blotch extending on 

 dorsum from |- to § and reaching half across wing; an ochreous- 

 whitish line from costa at | to disc beyond middle, edged posteriorly 

 with dark fuscous suffusion, and terminated by a crescentic group 

 of three blackish dots edged with whitish, median largest; an 

 ochreous-whitish line from f of costa to tomus, slightly bent in 

 middle and waved on lower half, edged anteriorly with dark fuscous ; 

 area beyond this dark fuscous, including a thick curved sub- 

 marginal leaden-grey shade, and marked on costa with two or three 

 ochreous-whitish dots, and on termen with an ochreous-whitish 

 praemarginal line : cilia violet - leaden, with a coppery-fuscous 

 postmedian shade. Hind-wings dark fuscous; cilia violet-grey. 



British Guiana, Bartica, from December to February 

 (Parish) ; thirty specimens. Very like ohseratella, Zell. 

 (which I identify with hibisci, Staint.), but easily distin- 

 guished by the absence of the three whitish dashes towards 

 termen characteristic of hibisci, and specially mentioned 

 by Zeller. 



Helcystogramma adaequata, n. sp. 



$. 14 mm. Head and thorax dark leaden-fuscous. Palpi light 

 fuscous, terminal joint whitish speckled with dark fuscous. Abdo- 

 men dark fuscous. Fore-wings elongate, rather narrow, posteriorly 

 rather dilated, costa gently arched, somewhat sinuate beyond middle, 

 apex obtuse, termen slightly sinuate in middle, hardly oblique; 

 dark fuscous; a leaden-grey median streak from base to dorsal 

 blotch ; a large semi-oval blotch of ground-colour partially suffused 

 with ferruginous and finely edged with whitish, extending on 

 dorsum from J to ^, its upper edge rather prominent in middle and 

 reaching f across wing; a thick blue-leaden-grey streak along costa 

 from base to J, thence continued along posterior edge of dorsal 

 blotch to dorsum, where it coalesces with a narrower slightly curved 

 transterse streak from costa beyond middle, space between these 

 in disc occupied by two transversely placed oval spots of blackish- 

 fuscous suffusion edged with whitish ; an oblique ochreous-whitish 

 strigula from costa at ^, and a small s^^ot on costa at f, whence a 

 faint irregular line runs to dorsum before tornus; a blue-leaden- 

 metallic line from costa before apex to tornus, indented outwards 



