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Diptera.info :: Identification queries :: Diptera (adults)
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Haematopota crassicornis ? (male) -> H. pluvialis
Erland
#1 Print Post
Posted on 20-08-2023 21:49
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Location: Denmark
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20th of June 2023, I see my first Haematopota sp. male ever. In Kragelund Moor, Vejen, Denmark.
I tried using key in "Families of flies with three pulvilli, 2022", and came to the conclusion that it was H. crassicornis. I reverted back to sp. though soon after.


Now I visited the area again 11th of August, and perhaps on the same fence post, saw yet another male. This time I got better photos. The eyes were all whitish grey at top, while the June observation had some brown mixed into the bit darker grey eyes. Perhaps the same individual?

Stunned to get a nice view of the underside of the eyes.
Erland attached the following image:


[112.58Kb]
Edited by Erland on 07-09-2023 10:43
 
www.flickr.com/photos/23985726@N05/
Erland
#2 Print Post
Posted on 20-08-2023 21:50
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A view from top:
Erland attached the following image:


[251.58Kb]
If it's not a dragonfly, it might be a fly
 
www.flickr.com/photos/23985726@N05/
Erland
#3 Print Post
Posted on 20-08-2023 21:51
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A side view with bad focus.

I should think this is H. crassicornis.

Thank you for looking.
Erland
Erland attached the following image:


[105.71Kb]
Edited by Erland on 20-08-2023 21:54
 
www.flickr.com/photos/23985726@N05/
Erland
#4 Print Post
Posted on 20-08-2023 22:06
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Here a link to the two images taken June 20th, link to Imaturalist:
https://www.inatu.../168495474
 
www.flickr.com/photos/23985726@N05/
eklans
#5 Print Post
Posted on 21-08-2023 08:51
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I tried using key in "Families of flies with three pulvilli, 2022", and came to the conclusion that it was H. crassicornis.


Hi Erland, I think you came to the right conclusion!
Edited by eklans on 21-08-2023 09:03
Greetings, Eric Kloeckner
 
Erland
#6 Print Post
Posted on 21-08-2023 12:27
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Thank you very much Eric.

The site is interesting for Tabanidae, as the are all-year graazing animals of water buffalo, horses and cattles, and even boar (Hungaryan breed). Kind of a private rewilding project.
Saw male Tabanus automnalis and female T. bromius too at my first visit.

greeting, Erlamd

If it's not a dragonfly, it might be a fly
 
www.flickr.com/photos/23985726@N05/
Zeegers
#7 Print Post
Posted on 25-08-2023 20:09
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I don’t see any yellow hairs on vertex, so I don’t think so.
Colour of antenna is very difficult to assess.

Abdomen colourwise is typical pluvialis.
Also end of August is hardly possible for crassicornis.


Theo
 
Erland
#8 Print Post
Posted on 07-09-2023 10:41
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Thank you very much for looking at this male Theo. All my photos of the genus are more or less put at genus level, and my attempt to key this one, seemed a bit like guesswork.

Erland
If it's not a dragonfly, it might be a fly
 
www.flickr.com/photos/23985726@N05/
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