Cryptic-polychromatism
Guides
Rekoa marius
Marius hairstreak
Rekoa marius, known as the Marius hairstreak, is a Neotropical butterfly in the family Lycaenidae. Adults exhibit sexual dimorphism in wing coloration, with males showing dark iridescent blue uppersides and females gray. The species ranges from Paraguay to northern Mexico, with occasional strays reaching southern Texas and Arizona. Larvae display complex ecological associations including myrmecophily with carpenter ants and feeding on diverse host plants.