Figure 1 from: Bogusch P, Hlaváčková L, Petr L, Bosch J (2020) Nest structure, pollen utilization and parasites associated with two west-Mediterranean bees (Hymenoptera, Apiformes, Megachilidae) nesting in empty snail shells. Journal of Hymenoptera Research 76: 113-125. https://doi.org/10.3897/jhr.76.49579

Figure 1 Structure of Hoplitis fertoni (A, D) and Osmia ferruginea (B, C, E) nests A shell of Sphincterochila candidissima with nest of H. fertoniB shell of S. candidissima with nest of O. ferrugineaC larva of O. ferruginea on pollen-nectar provision D nest structure of H. fertoniE nest structure of O. ferruginea. Photos and drawings by P. Bogusch.