It has a body length of 44 to 50 mm with a wingspan of 72 to 84 mm.
The upper side of the thorax has no light-coloured band between the bases of the wings. The pterostigmata are black.
In males, segments S3 to S7 of the abdomen have a light blue colour, S8 to S10 are black. The sides of the thorax have no light-coloured stripe. The eyes are green.
The female has a yellowish abdomen with dark longitudinal stripes.
The Black-tailed skimmer either hunts from a good position near the bank or sits directly on the ground and hunts from there.
Literature:
- K.-D. Dijkstra, Libellen Europas, 2. Auflage, Haupt Verlag Bern 2021,ISBN 3-258-08219-6, S. 261 f
- K. Sternberg / R. Buchwald, Libellen Baden-Württembergs, Bd. 2, Ulmer Verlag Stuttgart 2000, ISBN 3-8001-3514-0, S. 492–506
- H. Wildermuth, A. Martens, Die Libellen Europas, Quelle & Meyer Wiebelsheim 2018, 3-494-01690-9, S. 693 ff
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