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Diptera.info :: Identification queries :: Diptera (adults)
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Chaoborus sp. ?
bobabar
#1 Print Post
Posted on 02-08-2022 09:30
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Joined: 18.11.13

Hi there !

It must be a male Chaoboridae > Chaoborinae > Chaoborus sp.

These beasts strangely take on the lighting: on other photos we hardly see the white band at all, on others the beast seems semi-transparent (difficult to distinguish it).
Yet on these 2 shots, I was surprised to see this clear white line on the side of the thorax. Not the impression that it is reflections on a sleeping bag. It is the same specimen on the 2 images.

On the first photo, we see a clear lateral band on the thorax like Chaoborus flavicans, on the second we see the lateral piece of a thoracic segment white like Chaoborus pallidus.

Have a good day,
Fabrice "Bobabar" (on "Le Monde Des Insectes" forum), Cergy, near Paris, France

www.galerie-insecte.org/galerie/image/dos306/big/P1940298r1k.JPG
Bobabar : France : Cergy : 95000 : 13/07/2022
Altitude : 85 m - Taille : Lc = 6 - 7 mm (mesure peu précise)
Réf. : 306673

www.galerie-insecte.org/galerie/image/dos306/big/P1940299r1k.JPG
Bobabar : France : Cergy : 95000 : 13/07/2022
Altitude : 85 m - Taille : Lc = 6 - 7 mm (mesure peu précise)
Réf. : 306674
Edited by bobabar on 02-08-2022 09:33
 
John Carr
#2 Print Post
Posted on 02-08-2022 13:54
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Location: Massachusetts, USA
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This is one of the species of subgenus Chaoborus which I can't tell apart (flavicans and I think you have two others). It is not C. pallidus, which has spots on wings and legs.
 
http://www.flickr.com/photos/31715949@N00
bobabar
#3 Print Post
Posted on 02-08-2022 20:45
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Joined: 18.11.13

Thanks you John ! Smile

We have in Europe :
- Chaoborus (Chaoborus) crystallinus
- Chaoborus (Chaoborus) flavicans
- Chaoborus (Chaoborus) obscuripes
 
JSalmela
#4 Print Post
Posted on 05-03-2024 10:53
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Location: Finland
Posts: 40
Joined: 11.07.11

Hi, Most likely this is flavicans.
 
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