Falcuna libyssa, the common marble, is a butterfly in the family Lycaenidae. It is found in Nigeria, Cameroon, Equatorial Guinea and Angola. The habitat consists of primary and secondary forests with a canopy.
Adults of both sexes feed at extrafloral nectaries of Marantaceae and other creepers.
Subspecies Falcuna libyssa libyssa (eastern Nigeria, western Cameroon) Falcuna libyssa angolensis Stempffer & Bennett, 1963 (northern Angola) Falcuna libyssa cameroonica Stempffer & Bennett, 1963 (Cameroon: except the west, Equatorial Guinea: Mbini)
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