A new species, Bellevalia pelagica C.Brullo, Brullo & Pasta (Hyacinthaceae), growing in the limestone rocks of the Islet of Lampione in the Pelagian Archipelago (Sicily), is described and illustrated. It is a tetraploid with 2n = 16. It belongs to the Bellevalia romana group and shows a close relationship with B. dolichophylla and B. galitensis, both rare endemics from Tunisia.