Arcas (butterfly)

Arcas is a genus of butterflies in the family Lycaenidae. The species of this genus are found in the Neotropical realm.

The genus was erected by William John Swainson in 1832. The sister genus of Arcas is Theritas.

Species

 * Arcas alleluia Bálint, 2002
 * Arcas arcadia Bálint, 2002
 * Arcas cypria (Geyer, 1837)
 * Arcas delphia Nicolay, 1971 - Costa Rica and Colombia
 * Arcas ducalis (Westwood, 1852) - Brazil
 * Arcas gozmanyi Bálint, 2006
 * Arcas imperialis (Cramer, 1775) -Mexico, Colombia, Bolivia, Peru,  Ecuador, Guyana and Brazil
 * Arcas jivaro Nicolay, 1971 - Ecuador and Peru
 * Arcas nicolayi Salazar Escobar & Constantino, 1995
 * Arcas splendor (Druce, 1907)
 * Arcas tuneta (Hewitson, 1865) - Brazil two forms