South American Micro-Lepidoptera. 227 



Acrocercops encentris, n. sp. 



(J ?. 9-10 mm. Head, palpi, and thorax shining ochreous- whitish, 

 crown more or less tinged with bronzy-ochreous, labial palpi very 

 long and slender, maxillary rudimentary. Abdomen whitish - 

 ochreous. Forewings extremely narrow, moderately pointed; 

 shining white ; markings ochreous-f uscous ; a narrow elongate spot 

 along dorsum from near base to J of wing ; sometimes a small spot 

 on costa at J ; a moderate spot on costa beyond middle, sometimes 

 divided into two, and two or three small spots on dorsum before and 

 opposite to it, variably cormected with it; two transverse marks 

 from costa posteriorly; a moderate darker fuscous spot occupying 

 apex : cilia greyish, on termen suffused with ochreous-whitish on 

 basal half, on costa white. Hindwings dark grey ; cilia grey. 



British Guiana, Bartica, from December to February 

 (Parish) ; seven specimens. 



Acrocercops hastigera, n. sp. 



(J. 8 mm. (Head and thorax damaged.) Abdomen grey. Fore- 

 wings very narrow, parallel-sided, shortly and obtusely pointed ; 

 brown, along dorsal streak and on posterior half of wing suffused 

 with fuscous, becoming orange towards apex ; a strong snow-white 

 streak along dorsum from base, terminated by a fine slightly- 

 curved violet-silvery line crossing wing at | ; a very oblique violet- 

 silvery strigula from costa before f , nearly reaching transverse line 

 in middle : cilia white, towards tornus greyish, round apex with 

 base grey within a black line, with a dark grey spot on costa at 

 extremity of this line, and a dark grey patch at apex containing 

 two oblique projecting blackish hooks. Hindwings rather dark 

 grey; cilia grey. 



Ecuador, Duran, in June (Parish) ; one specimen. 

 Allied to piligera; except for the injury to head, the 

 example is in fine condition. 



Acrocercops piligera, n. sp. 



(^. 8 mm. Head pale bronzy-ochreous, crown becoming whitish 

 posteriorly, collar white. Palpi long, slender, white, apex of second 

 joint infuscated. Thorax ochreous-bronze, with whitish dorsal 

 stripe. Abdomen grey. Forewings very narrow, parallel-sided, 

 shortly and obtusely pointed; ferruginous-fuscous, dorsal third 

 from base to tornus ferruginous; a white dorsal streak from base 

 to middle of wing, its extremity emitting an oblique strigula; a 

 slender irregular white streak from near beyond this along dorsum 



