Heavy load

Spent the weekend at my wife's family cottage beside a lake. Today went to pick mushrooms - found 10 nice porcinos, and many chanterelles and funnel chanterelles (their season is just starting properly).

Noted this fellow while walking the forest road and noted the strange backside of it. It looked huge in comparison to the size of the insect and its wings. I hope some of you might have an idea what it is - looks like a heavy load.

Anyhow, it seemed to like a lot the juices of this flower, drowing its head well into the flower just like in the picture. Took some pictures also showing its head, but this one showed the strange bottom best.