There are two red-eyed blue dams and this is the more common in the UK. It’s fond of water lily pads to sit on.
- black legs
- ♂ – no antehumeral stripes
- ♂ – bright red eyes
- ♂ – blue S1, then black down to a blue S9&10
- ♀ – brownish eyes
- ♀ – narrow, short or broken antehumeral stripes
- ♀ – yellow-green ventral side to abdomen, dark dorsal side