A proper Spring day brought our more insects, including this Dark-edged Bee Fly that was sunbathing on the fence, just next to the insect hotel. These flies are parasites of solitary bees, laying their eggs in the nests pf solitary mining and mason bees. They appear in the spring at the same time as the first mining bees. Usually bee flies are quite difficult to photograph as they fly really fast, but it was still quite cold at lunchtime when I saw this one, so it did not seem too bothered by me getting up close with my phone to get a photo.