I. (Nesiberus) pythiusensis (Bofill & Aguilar-Amat, 1924)

=? Iberellus tanitianus Forés et Vilella, 1995

= Allognathus (Iberellus) hispanicus elserae Talaván Serna & Talaván Gómez, 2019

Endemic to the Pytiusics (including surrounding islets).