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.