Prionostirina nana Schumacher, 1913b: 458 (syn. Drake & Ruhoff, 1961b: 156, with Urentius euonymus; restored by Péricart, 1983: 552). HT: female, Israel, Rehobot, nr Haifa; ZMHB.
Urentius hoggari Bergevin, 1928: 336 (syn. Drake & Ruhoff, 1961b: 156, with U. euonymus; transferred to syn. of U. nanus by Péricart, 1983: 552). LT (Péricart, 1982: 369): male, Algeria, Hoggar, Tihentchent; MNHN.