Coenagrion mercuriale (Southern Damselfly)

One of the rarest and the smallest blue damselfly in the UK. We spotted ours in the New Forest but it has outposts in Devon and the Gower peninsula.

Id Notes

  • black Coenagrion “spur” on side of thorax
  • ♂ – S2 displays a black shape supposedly resembling Mercury’s winged helmet
  • ♂ – S3-6 usually ~half black dorsally
  • lozenge-shaped pterostigma with darker centre [sounds like a chocolate :D ]
male pair in tandem

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