Abstract:
In the present paper which is the first part of my study on the Apoidea of the Pieniny Mts. I am giving the results of the investigations on the family Megachilidae and the genera Clisodon Patton, Anthophora Latr., Eucera Scop., Bombus Latr. and Psithyrus Lep.of the family Apidae. The remainder of the material will be worked out together with Prof. Dr. J. Noskiewicz.