Micropterix trinacriella is a species of moth belonging to the family Micropterigidae that was described by Michael A. Kurz, Hans Christof Zeller-Lukashort and Marion E. Kurz in 1997. It is only known from the area near the northern shore of Sicily, as well as in the surrounding of Mount Etna.[1]
The length of the forewings is 2.6- for males and 2.8- for females.