A chilly, windy, but sunny day, +9° C. Been to woods around Krasnogorsk.
More insects around than when it was warm but cloudy.
Vespula rufa queen was basking on a tree:
A -yet- unidentified Syrphine:
Upd: Melangyna ?lasiophthalma, ID suggestion by Karsten Thomsen, diptera.info: