[3][4] Damselflies are an important link between the health of the aquatic ecosystem and its response to climate change.

[5] The closely related Nearctic species Enallagma annexum (northern bluet) was at one time considered to be synonymous with it.

[6] These damselflies inhabit freshwater bodies whose conditions range, they have been seen in acidic fens as well as eutrophic ponds.

[11][12] The damselfly larvae require a plant structure that can withstand the backward movement that occurs when the labium protracts to catch food.

Andromorphic females resemble the caerulean blue males, but they have more black patterning on their bodies.

The reasoning behind the different morphs is to attempt to limit the amount of attention the female receives when she is near the water for reproduction.

By being able to shift the lifecycle due to the conditions this allows for twice the amount of development time, so larger adults are typically found in more northern areas.

The eggs hatch and the larvae, called nymphs, live in the water and feed on small aquatic animals.

[4] There has also been pairings with Ischnura elegans and Coenagrion puella which are similar to Enallagma, although this occurs when there is same species mates are unable to be located.

[7] The exposure to the larvae has effects on the adult life stage in regard to their fitness[7][8][9] Behaviour is lessened by the introduction of pesticides.