Literature
- Banaszak, J. and Dochkova, B. 2014. Bees (Hymenoptera, Apoidea, Apiformes) in the agricultural landscape of Bulgaria: species diversity Journal of Apicultural Science Vol. 58 No. 1 pp. 29-49.
- Pesenko Y. A. , J. Banaszak, V.G. Radchenko & T. Cierzniak 2000. Bees of the Family Halictidae (Excluding Sphecodes) of Poland; Taxonomy, Ecology, Bionomics.Wydawnictwo Uczelniane.