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I have suggested in "Papilio" that this South American species belongs toCopidryas, and is congeneric with ourC. Gloveri. Berg's original description says of the frontal structure:- "Fronte valde prominenti, supra cornu complanato depressione declivi marginata fuscaornata." This character agrees well withCopidryas, but not withEudryas, in which latter the front is not horned.doi:10.4039/ent268-1 fatcat:noifowzhrzg45hi72cysiedrau