Global distribution: Palearctic
Global distribution: Tanger-Tetouan-Al Hoceima; Oriental; Fès-Meknès; Rabat-Salé-Kénitra; Béni Mellal-Khénifra; Marrakech-Safi; Drâa-Tafilalet
Note: Although usually spelled as L. discum, the epithet “discus” is is a noun in both Latin and Greek, so ICZN Art. 31.2.1 applies.
References: Ebmer (1988); Pesenko (2006); Pauly (2011c)