Aristotelia trossulella is a moth of the Gelechiidae family. It was described by Walsingham in 1897. It is found in Jamaica and Haiti. The wingspan is about 10 mm. The forewings are bright olive-brown, from the extreme base an oblique leaden-grey line extends downwards to the dorsum at one-fifth. Beyond it an oblique black line leaving the costa at one-fifth reaches nearly to the dorsum, accompanied throughout on its outer edge by a pinkish-ochreous line followed by steel-grey scales. A patch of steel-grey scales a little before the middle of the costa scarcely reaches beyond the upper margin of the cell, and is followed beyond the middle by a small pinkish-ochreous costal dot connected by some steel-grey scales with an inwardly oblique pinkish-ochreous line reverting towards the middle of