Reference:

Bogusch, P. & Kratochvil, L. & Straka, J., 2006. Generalist cuckoo bees (Hymenoptera: Apoidea: Sphecodes) are species-specialist at the individual level. Behavioral Ecology and Sociobiology. 60. 422-429. 10.1007/s00265-006-0182-4.

URL:

https://www.researchgate.net/publication/225914900_Generalist_cuckoo_bees_Hymenoptera_Apoidea_Sphecodes_are_species-specialist_at_the_individual_level

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