Osmia ligurica, Morawitz, 1868

Müller, Andreas, 2018, Palaearctic Osmia bees of the subgenus Hoplosmia (Megachilidae, Osmiini): biology, taxonomy and key to species, Zootaxa 4415 (2), pp. 297-329 : 315

Osmia ligurica species group

This species group unites all O. ( Hoplosmia ) species, which i) have the metanotum not overhung by the scutellum, ii) are characterized by an apically flattened and uniformly punctured clypeus, iii) nest in preexisting cavities other than snail shells and iv) use leaf pulp as nest building material.