Aristotelia penicillata is a moth of the Gelechiidae family. It was described by Walsingham in 1897. It is found in West Indies, where it has been recorded from Haiti. The wingspan is about 10 mm. The forewings are ochreous, mottled with greyish fuscous and metallic steel-grey, with creamy-white streaks and spots. An oblique greyish-fuscous patch, edged with blackish scales externally, extends from the base of the costa nearly to the dorsum and is immediately followed by a triangular whitish streak of equal length. Two small whitish spots on the costa beyond it are followed around the termen by short streak-spots through the terminal cilia and two small black dots lie on the cell, the first at one-half, the other at its end. The steel-grey mottling appears to accompany the paler markings,