St Mark's Fly

St Mark's Fly

Observation - St Mark's Fly - UK and Ireland. Description: Large black fly with huge eyes, short antennae and a spine on the tibia of its legs. There was a large number of these insects on a sapling oak and surrounding plants

Large black fly with huge eyes, short antennae and a spine on the tibia of its legs.

There was a large number of these insects on a sapling oak and surrounding plants