Or to laymen like me a Southern Skimmer or Keeled Skimmer.Both very similar,especially in the Mediterranean regions where the male Keeled Skimmer is all blue in colour as is the male Southern.
However there are several differences which can separate the species on close inspection.
The following photos were taken on a recent trip to Lefkada,Greece and show male and female Keeled Skimmers sp. anceps.
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