Elasmopalpus angustellus is a species of snout moths in the diverse subfamily Phycitinae. It was described by ÃÂmile Blanchard in 1852.
Elasmopalpus lignosellus has been considered a synonym of E. lignosellus. Clarke (1965), however, re-investigated the two species and found E. angustellus to be a separate species that is confined to Chile and the Juan Fernández Islands, with material from Brazil, Argentina, Mexico and North America correctly assigned to E. lignosellus.