Easily recognised by its smoky wings, which have relatively few veins; these are dark and widely-spaced and do not fork at the tips. The adults, usually seen resting on waterside objects, rarely feed. They fly weakly when disturbed. The rather feathery, aquatic larva is highly predatory.
Log Book Number:
most of Europe
edges of ponds and slow-moving streams
rarely feeds, but may nibble on algae and pollen grains.
Common and widespread