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Antaeotricha pactota is a moth of the Depressariidae family. It is found in Guyana and Brazil (Para).
The wingspan is 17-18 mm. The forewings are white with an irregular oblique transverse dark grey patch from the costa at one-fourth, reaching half across the wing, widest on the costa and narrowly produced along the costa towards the base. There is a faint greyish spot above middle of the disc, and a hardly traceable transverse mark above the middle of the dorsum. There are two dark fuscous dots transversely placed on the end of the cell and a dark grey fascia more or less mixed and broken with white suffusion from three-fourth of the costa to the dorsum before the tornus and there is some dark grey irroration towards the apical part of the costa and termen. There are four or five, sometimes connected, small dark fuscous pre-marginal spots around the apex. The hindwings are ochreous-whitish, tinged with grey towards the apex and along the termen. The costal margin is expanded on the basal half, with long rough projecting hairscales suffused with dark grey beneath, and a long subcostal pencil of whitish-ochreous hairs lying beneath the forewings.