Now the Andrena and Nomada seasons starts. I want to informe all of you, that identification by pics of both genera is impossible in most species. There are to much similar species (Nomada about 80-100 sp. in Central Europe including Hungary, and Andrena about 130-150 species).
Of course are exceptions possible, but only in few cases. So me ore other experts will not always write "Id not possible", and therefore I informe you by this way. It will also be very helpfull when there is any information about host in Nomada or about a visited flower in Andrena, because most species are very specific the choose of hosts or flowers.
Nevertheless, we all enjoy the wonderfull pics here from so many places in Europe.