Blue-tailed Damselflies: “Common” vs Scarce

In my early days of being a dragonfly obsessive, I well remember studying every Blue-tailed Damselfly (Ischnura) in the hope that I would stumble across my first Scarce Blue-tailed Damselfly (Ischnura pumilio). That was before I learned that habitat was paramount.

There are those that find the differences between the males confusing so here is what I hope is an explanatory diagram.


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