South American Micro-Lepidoptera. 173 
Ardeutica semipicta, n. sp. 
g. 23 mm. Head ochreous-grey-whitish. Palpi fuscous, above 
whitish. Thorax brownish-ochreous. Abdomen rather dark 
fuscous. Forewings suboblong, costa anteriorly strongly, posteriorly 
slightly arched, apex obtuse, termen slightly sinuate, rather oblique ; 
fuscous; a large yellow-ochreous patch, mixed with ferruginous, 
with a few dark fuscous scales, occupying whole wing anteriorly 
except towards costa, and limited posteriorly by an obscure cloudy 
2 
rather excurved whitish line running from 2 of costa to tornus, 
more broadly suffused towards costa; a curved oblique-transverse 
. ridge of scales within this patch before middle of wing, and some 
other scattered smaller tufts: cilia fuscous, beneath tornus pale 
ochreous. Hindwings rather dark fuscous; cilia fuscous. 
Brazit, Petropolis; one specimen. Thorax without 
apparent crest, but possibly abraded; structure otherwise 
conforms to type. 
Ardeutica spumosa, n. sp. 
3g. 26mm. Head and thorax white, crests tinged with fuscous. 
Palpi fuscous. Abdomen light fuscous. Forewings oblong, costa 
anteriorly strongly, posteriorly hardly arched, apex obtuse-pointed, 
termen faintly sinuate, rather oblique; bronzy-fuscous, partially 
suffused with light purplish-grey; a broad whitish-ochreous streak 
edged with white from base of dorsum, reaching costa at }, thence 
narrower and curved downwards through middle of dise to costa 
just before apex; a white line runs from this streak in dise nearly 
to tornus ; four or five tufts towards costa anteriorly, three beneath 
fold, and several in disc posteriorly : cilia light fuscous, suffusedly 
barred with darker bronzy-fuscous. Hindwings fuscous, paler 
anteriorly; a long hairpencil lying in submedian groove from base ; 
cilia light fuscous, becoming pale greyish-ochreous towards dorsum. 
Peru, Huancabamba; one specimen. 
EUCOSMIDAE. 
Laspeyresia guttifera, n. sp. 
g- 15 mm. Head and palpi fuscous. Thorax rather dark 
lilac-fuscous. Abdomen dark fuscous. Forewings elongate, rather 
dilated posteriorly, costa slightly arched, apex rounded, termen 
rounded, little oblique, somewhat indented in middle; rather dark 
