Visual Key: Back of Eye Shape

Choices can be further limited by noting the shape of the rear edge of the eye:

… is the rear edge of the eye reasonably smooth or is there a notch?

rear edge is notched.

rear edge is smooth.

OR …

Those dragonflies with a notched rear edge to the eye are the Emerald Dragonflies whose main body colour is metallic green through adult life so we can safely switch to colour mode for those. [Note, however, that the eye colour IS variable.]

Body colour is metallic green.

Body colour is NOT metallic green.

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