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Hello,

{click on the picture to get a better resolution. Click again to come back.}


Pierre Duhem : France : La Forêt-Fouesnant : 29940 : 05/07/2023
Altitude : 83 m - Taille : 15-18 mm
Réf. : 327253

Is it possible to make a distinction between N. cyanurus and N. cothurnatus on this picture?
Thanks in advance.

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Bonjour Pierre, sure as can be with a female: N. cothurnatus:
- long bristles on fore tibia pale
- fore metatarsus mostly yellow

("females are difficult to determine - sure only under the microscope"
Die Raubfliegen Deutschlands (Wolff, Gebel, Geller-Grimm)

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Thanks Eric.

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This is a female Neomochtherus geniculatus.

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Thanks, Danny.