Criorhina ranunculi · žiedmusė

• Large Bear Hoverfly
• Große Pelzschwebfliege

https://en.wikipedia.org/wiki/Criorhina_ranunculi The larvae develop in the damp rotting roots and low heart-rot of mature trees (perhaps especially oaks), and females can sometimes be seen investigating the bases of such trees to oviposit or resting on tree trunks.

det. Erikas Lutovinovas 2383