South American Micro-Lepidoptera. 197 
Acrolophus pachynta, n. sp. 
¢. 33mm. Head, palpi, and thorax dark brown; palpi extremely 
long, recurved, reaching to extremity of thorax, strongly thickened 
throughout with dense projecting scales. Antennae flatly dentate. 
Abdomen densely hairy, rather dark fuscous; uncus long, curved, 
points appressed, claspers rather narrow, hardly expanded, apex 
rounded. Posterior tarsi with basal joint rough-scaled above. 
Forewings moderately broad, Somewhat dilated, costa gently arched, 
apex rounded, termen rounded, somewhat oblique; all veins separ- 
ate; deep brown with slight purplish tinge, with small scattered dark 
fuscous dots; costa dotted with dark fuscous; suffused subquadrate 
dark fuscous spots in disc at 4 and %, and a triangular blotch beneath 
and between these: cilia brown, tips reddish-tinged. Hindwings 
rather dark fuscous; cilia fuscous, towards tips fuscous-whitish. 
CotomsBia, Rio Bitaco, 4,400 feet, in April; one 
specimen. 
Acrolophus particeps, 1. sp. 
6. 16-17 mm. Head, palpi, and thorax light greyish-ochreous 
or fuscous; palpi extremely long, more or less strongly recurved, 
not reaching to extremity of thorax, thickened with dense appressed 
scales. Antennae flatly dentate. Abdomen light fuscous, uncus 
long, abruptly curved downwards, points closely appressed, claspers 
moderate, rather dilated, apex rounded. Posterior tarsi not rough- 
scaled. Forewings elongate, hardly dilated, costa gently arched, 
apex rounded, termen slightly rounded, rather oblique; all veins 
separate; pale greyish-ochreous, sometimes much suffused with 
fuscous; costa spotted or strigulated with dark fuscous; a dark 
fuscous suffused patch beneath middle of disc, and a spot in disc 
at %, these sometimes forming part of a large triangular area of fus- 
cous suffusion and dark fuscous strigulation extending along costa 
from } to §; sometimes some irregular spots of dark fuscous suffusion 
towards middle of termen: cilia pale brownish, indistinctly barred 
with dark fuscous irroration. Hindwings and cilia fuscous. 
VENEZUELA, Ciudad Bolivar, in July and September; 
two specimens. 
Acrolophus infida, n. sp. 
d- 16-18 mm. Head, palpi, and thorax fuscous, sprinkled with 
dark fuscous; palpi extremely long, recurved, reaching to extremity 
of thorax, thickened with dense somewhat rough scales. Antennae 
strongly bipectinated, pectinations slender. Abdomen fuscous, 
