Pierella is a butterflygenus from the subfamily Satyrinae in the family Nymphalidae found from Mexico through Central America to South America. The species of Pierella have larger hindwings than forewings, unique among butterflies. The oval green flash on the forewing is also unique. It is caused by diffraction, the wing scales forming a diffraction grating.
Pierella lena lena (= Papilio lena, Papilio sectator)
Pierella lena brasiliensis (C.Felder & R.Felder, 1862) (= Haetera brasiliensis, P. lena browni, P. lena glaucolena, P. lena f. melanosa (nomen nudum), P. lena f. obsoleta)
Pierella lucia Weymer, 1885 (= P. astyoche var. albomaculata) – Lucia pierella