The St Mark’s Fly is a very common, long, shiny black fly which can be found in large numbers during the spring around woodland edges, fields and wetlands. It hangs in the air over the vegetation, drifting along with its legs dangling in underneath it. St Mark’s Flies will often land on any objects in their way, including fence posts and people, and are rather sluggish at rest. The larvae live in the soil feeding on roots, grasses and rotting vegetation, and are often found around compost heaps. The adults feed on nectar and are considered as important pollinators for fruit trees and other plants.
I photographed this fly in Hoo Wood this morning.