It is a monotypic genus,[1] containing the single species Ferraroa hyalina, a foliicolous (leaf-dwelling) lichen.

This species was originally described by Robert Lücking in 1997 as Gyalideopsis hyalina.

The type specimen was collected from leaves of Inga oerstediana in Costa Rica.

[2] Lücking, Emmanuël Sérusiaux, and Antonín Vězda transferred the taxon to the newly circumscribed genus Ferraroa in 2005 after molecular phylogenetic analysis showed it to belong to a unique lineage.

The generic name Ferraroa honours Argentinian lichenologist Lidia Itatí Ferraro, "for her many contributions to lichenology in southern South America, and to our knowledge of Gomphillaceae".