Literature
- Bossert, S. 2014. The high alpine bee fauna (Hymenoptera: Apoidea) of the Zillertal Alps, Austria. Biodivers Data J. 2014; (2): e1115.
- 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.