Osmia (Helicosmia) signata Erichson, 1835

Global distribution: Palearctic

Regional distribution: Fès-Meknès; Rabat-Salé-Kénitra; Drâa-Tafilalet; Souss-Massa; Guelmim-Oued Noun

References: Schulthess (1924); Lindbergh (1934); Nadig & Nadig (1933); Benoist (1950b); Warncke (1988b); M̹ller (2019)