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 Asilidae bluish gray, red apex, black and orange legs => Cerdistus cf. erythrurus
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| bobabar |
Posted on 22-08-2022 08:34
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Member Location: Posts: 54 Joined: 18.11.13 |
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.  Bobabar : France : Cergy : 95000 : 10/08/2022 Altitude : 85 m - Taille : Lc = 9, 5 mm (mesurée) Réf. : 308958  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 |
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| Chris Cohen |
Posted on 22-08-2022 19:57
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Member Location: Posts: 211 Joined: 15.02.19 |
Not Neoitamus, but rather Neomochtherus/Aneomochtherus or related |
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| bobabar |
Posted on 23-08-2022 09:49
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Member Location: Posts: 54 Joined: 18.11.13 |
Thanks you Chris !  A colleague thinks of the genus Cerdistus. What do you think of this proposal? |
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| Chris Cohen |
Posted on 23-08-2022 16:51
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Member Location: Posts: 211 Joined: 15.02.19 |
Cerdistus is related to Neomochtherus and allies, so that is possible. I'm not entirely sure how to separate those genera to be honest. |
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| bobabar |
Posted on 29-08-2022 08:25
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Member Location: Posts: 54 Joined: 18.11.13 |
Thanks Chris! 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. |
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| Quaedfliegh |
Posted on 30-08-2022 01:47
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 Member Location: Tilburg Netherlands Posts: 2220 Joined: 18.05.10 |
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/ |
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| bobabar |
Posted on 31-08-2022 14:21
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Member Location: Posts: 54 Joined: 18.11.13 |
Thanks you Reinoud ! 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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