Reference:
Muller, A., 1996. Host‐plant specialization in western palearctic Anthidine bees (hymenoptera: Apoidea: Megachilidae). Ecological Monographs, 66(2), 235-257.
URL:
https://www.researchgate.net/publication/259470253_Host-Plant_Specialization_in_Western_Palearctic_Anthidine_Bees_Hymenoptera_Apoidea_Megachilidae