Family: Riodinidae — Subfamily: Riodininae — Tribe: Mesosemiini
Mesosemia (127 species) is a Neotropical genus that features on each forewing a dark eyespot containing two or three white flecks.
Mesosemia machaera typically has a large amount of white at the apex of the hindwing, with the apical edge itself all-white. The species was described from Amazonas state in Brazil, and has also been recorded from Colombia and Peru. "Machaera" is Greek and refers to a dagger or sword.
Photo location: Amazonas, Brazil.
American Insects site