Frailea atrobella Diers, Krahn & R.Vásquez in Kakteen And. Sukk. 62: 156. 2011 Frailea atrobella Diers, Krahn & R.Vásquez in Kakteen And. Sukk. 62: 156. 2011Taxon for this nameFrailea atrobella Diers, Krahn & R.Vásquez