FIGURES 1–7 in Palaearctic Osmia bees of the subgenera Hemiosmia, Tergosmia and Erythrosmia (Megachilidae, Osmiini): biology, taxonomy and key to species

FIGURES 1–7: Osmia (Hemiosmia). 1: Female of O. balearica on Lotus creticus (Fabaceae; photo V. Haeseler). 2: Female of O. uncicornis digging out nest burrow in loose soil (photo V. Haeseler). 3: Excavated brood cells of O. uncicornis. 4: Copulating pair of O. balearica (photo V. Haeseler). 5–7: Male terga 5–6 of O. uncicornis (5), O. argyropyga (6) and O. difficilis (7).