Reference
Christina Ban-Calefariu, Toshko Ljubomirov (2010): Addition to Linzer biol. Beitr. 41 (2): 1803-1816
New data on the distribution of some Megachilinae
(Hymenoptera: Apoidea: Megachilidae) in Romania
Part 2: Maps – Linzer biologische Beiträge – 0042_1: 507 - 522.