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Diptera.info » Family forums » Asilidae Forum
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Asilidae bluish gray, red apex, black and orange legs => Cerdistus cf. erythrurus
bobabar
Hello everybody!

This supposed Asilidae resembles Neoitamus cyanurus. But the red color of the apex is surprising. Even if it was illuminated by outside light, there was not a strong sun, and the photo on the right of the montage was taken with a flash, 3 or 4 cm from the beast.

www.galerie-insecte.org/galerie/image/dos308/big/P195034550r1k.JPG
Bobabar : France : Cergy : 95000 : 10/08/2022
Altitude : 85 m - Taille : Lc = 9, 5 mm (mesurée)
Réf. : 308958
www.galerie-insecte.org/galerie/image/dos308/big/P1310245r1k.JPG
Bobabar : France : Cergy : 95000 : 10/08/2022
Altitude : 85 m - Taille : Lc = 9, 5 mm (mesurée)
Réf. : 308957

Bobabar, Cergy, 25 kms North-West of Paris, France
Edited by bobabar on 31-08-2022 14:42
 
Chris Cohen
Not Neoitamus, but rather Neomochtherus/Aneomochtherus or related
 
bobabar
Thanks you Chris ! Smile

A colleague thinks of the genus Cerdistus. What do you think of this proposal?
 
Chris Cohen
Cerdistus is related to Neomochtherus and allies, so that is possible. I'm not entirely sure how to separate those genera to be honest.
 
bobabar
Thanks Chris! Smile
It's a bit the same answer that my colleague gave me, asking for the genitalia to study them. But I did not capture the beast.
 
Quaedfliegh
It is a Cerdistus cf erythrurus. The separation of Cerdistus is rather artificial but mostly they are small and have more DC than Aneomochtherus or Neomochtherus. Antennae always black. Somehow the separation feels "good" :-) At least I recognise them easily....
Greetings,

Reinoud

Field guide to the robber flies of the Netherlands and Belgium: https://www.jeugdbondsuitgeverij.nl/product/field-guide-to-the-robberflies-of-the-netherlands-and-belgium/

https://www.nev.nl/diptera/
 
Mariastraat 12
bobabar
Thanks you Reinoud ! Smile

THe last link is broken.
I think that the new link for Diptera is now :
https://nev.nl/secties/vliegen-en-muggen/
 
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17.08.23 15:23
Aneomochtherus

17.08.23 13:54
Tony, I HAD a blank in the file name. Sorry!

17.08.23 13:44
Tony, thanks! I tried it (see "Cylindromyia" Wink but don't see the image in the post.

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pjt - just send the post and attached image. Do not preview thread, as this will lose the link to the image,

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Tried to attach an image to a forum post. jpg, 32kB, 72dpi, no blanks, ... File name is correctly displayed, but when I click "Preview Thread" it just vanishes. Help!

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