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.
Bálint, Zs., 2006 Arcas Swainson, 1832 is revisited: review of some species-group names, identification of the sister group and a key for species (Lepidoptera, Lycaenidae: Eumaeini) Annales historico-naturales Musei nationalis hungarici 98 :147-158. ISSN 0521-4726 [1]
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.