Literature
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- Else, G.R. & Edwards, M. 2018. Handbook of the Bees of the British Isles. Ray Society, London.
- Flügel, H-J. 2017. Verbreitung der Hylaeus gibbus–Artengruppe in Hessen, weitere eigene Fundnachweise und Anmerkungen zur Biologie (Hymenoptera Aculeata: Apoidea, Colletidae) Ampulex 9 pp 15-19.
- Ornosa, C. & Ortiz-Sanchez, F.J. 2004. Hymenoptera, Apoidea I. In M. A. e. a. Ramos (eds.), Fauna Ibérica. CSIC, Madrid, 556pp.
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- Tomozei, B. 2008. Checklist of Bees of the genera Colletes Latreille 1930 and Hylaeus Fabricius 1793 of Romania (Hymenoptera: Apiformes: Colletidae) Faunistic Entomology – Entomologie faunistique 2008 61 (3), 87-97.