South American Micro-Lepidoptera. 253 



edge, terminal joint sometimes infuscated at tip. Abdomen dark 

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

 apex obtuse, termen obliquely rounded; fuscous, strongly and 

 suffusedly irrorated with whitish ; black basal dots on costa and in 

 middle; three wedge-shaped blackish spots on costa at J, middle, 

 and before subterminal line ; an oblique dark fuscous mark on fold 

 beneath first of these, and a small round spot towards costa before 

 second; stigmata dark fuscous, plical slightly before first discal, 

 second discal larger; subterminal line obscurely whitish, from f of 

 costa to tornus, forming a spot on costa, sinuate inwards on vipper 

 half, on dorsum preceded by an undefined spot of dark brown 

 suffusion; two distinct black dots on costa towards apex and 

 termen beneath apex, and sometimes two or three other smaller 

 ones : cilia grey sprinkled with whitish, with obscure darker bars. 

 Hind-wings dark grey, lighter in disc anteriorly; cilia grey, darker 

 towards base. 



British Guiana, Bartica and Mallali, in February and 

 March (Parish) ; thirty specimens. 



Agriastis inquieta, n. sp. 



^. 15-16 mm. Head and thorax pale greyish -ochreous some- 

 what sprinkled with fuscous. Palpi whitish-ochreous, second jomt 

 with broad bands of dark fuscous suffusion above and below middle, 

 terminal joint sprinkled with dark fuscous. Abdomen dark fuscous. 

 Fore -wings elongate, rather narrow, costa gently arched, apex 

 obtuse, termen obliquely rounded; pale greyish-ochreous, more or 

 less tinged or suffused with brown, and sprinkled with fuscous and 

 dark fuscous scales; a dark fuscous elongate dot towards costa 

 near base; elongate dark fuscous marks on costa about middle 

 and f ; stigmata represented by small tufts of dark fuscous or 

 blackish scales suffused with reddish-brown, an additional tuft 

 adjoining first discal obliquely above and before it, plical beneath 

 first discal, an additional tuft beneath second discal ; a spot of dark 

 reddish-fuscous suffusion on dorsum before tornus ; a row of blackish 

 dots round posterior part of costa and termen : cilia light greyish- 

 ochreous, towards base barred with grey. Hind-wings dark fuscous ; 

 cilia grey, darker towards base. 



British Guiana, Bartica, in February (Parish) ; six 

 specimens. 



Sorotacta, n. g. 



^ Head smooth; ocelli present; tongue developed. Antennae |, 

 basal joint elongate, without pecten. Labial palpi very long, re- 



