1. Ackerman AJ (1916) The carpenter-bees of the United States of the genus Xylocopa. J N Y Entomol Soc 24(3):196–232
2. Amiet F, Krebs W (2012) Bienen Mitteleuropas: Gattungen, Lebensweise, Beobachtung. Haupt, Bern
3. Astapenková A, Heneberg P, Bogusch P (2017) Larvae and nests of aculeate hymenoptera (Hymenoptera: Aculeata) nesting in reed galls induced by Lipara spp. (Diptera: Chloropidae) with a review of species recorded. Part II. PLoS One 12(1):e0169592
4. Banaszak J, Romasenko L (1998) Megachilid bees of Europe (Hymenoptera, Apoidea, Megachilidae). Pedagogical University of Bydgoszcz, Bydgoszcz
5. Baťa L, Hoffer A, Šustera O (1938) Prodromus blanokřídlého hmyzu Republiky Česko-Slovenské. Pars II. [Prodromus of the Hymenoptera of the Czechoslovakia]. Sborník Entomologického Oddělení Národního Musea v Praze 16:166–223 (in Czech)