Bothersome pollen

Spent some while watching the bumbles visiting my hollyhocks on the terrace. Some of them darted from flower to flower but this one was really industrious and went around all the stamens meticulously.  Sadly that meant that it had to take over half an hour to clean itself up.  You can see in the first extra it is trying to clean its back legs. The pollen grains are being scattered around in the second where it is almost clean.