Dragonflies and Damselflies of Britain and Western Europe by Jean-Pierre Boudot Guillaume Doucet and Daniel Grand

Author:Jean-Pierre Boudot, Guillaume Doucet and Daniel Grand
Language: eng
Format: epub, pdf
Publisher: Bloomsbury
Published: 2021-10-15T00:00:00+00:00

♂ abdomen : 33–36mm

♀ abdomen : 34–38mm

Eyes distinctly separate

Legs with black and yellow stripes

Abdomen slightly widened at the tip

Side of the thorax

Genus ONYCHOGOMPHUS

1.♂ Branches of the supra-anal plate not differentiated at apex A. Cercoids not bifid at tip, in the shape of strongly hooked claws B.

♀ Vulvar plate formed by two converging blades, these not reaching a quarter of length of ninth abdominal segment C. No tubercles on occiput behind eyes.

. . . . . . . . . . .Onychogomphus uncatus

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