Common Blue Damselfly or Azure Damselfly?

Common Blue Damselfly or Azure Damselfly?

Observation - Common Blue Damselfly or Azure Damselfly? - UK and Ireland. Description: On this photo there are two Damselflies,and they both have different markings. Presumably one is a male and one is a female.

On this photo there are two Damselflies,and they both have different markings. Presumably one is a male and one is a female.