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Diptera.info :: Identification queries :: Diptera (adults)
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Ornithomyia ID -> O. chloropus?
maroo
#1 Print Post
Posted on 16-08-2018 08:12
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Location: Gothenburg, Sweden
Posts: 679
Joined: 27.10.14

Found this fly on birdbanding station, southern Sweden a few days ago

I think it's either a fringillina and chloropus, but is it possible to identify?

Length, about 4 mm


Martin
maroo attached the following image:


[65.7Kb]
Edited by maroo on 19-08-2018 07:00
 
maroo
#2 Print Post
Posted on 16-08-2018 08:12
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Location: Gothenburg, Sweden
Posts: 679
Joined: 27.10.14

.
maroo attached the following image:


[96.48Kb]
 
maroo
#3 Print Post
Posted on 16-08-2018 08:13
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Location: Gothenburg, Sweden
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.
maroo attached the following image:


[66.59Kb]
 
maroo
#4 Print Post
Posted on 16-08-2018 08:13
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Location: Gothenburg, Sweden
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maroo attached the following image:


[83.47Kb]
 
Tony Irwin
#5 Print Post
Posted on 16-08-2018 08:59
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Location: Norwich, England
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The size and shape of the eyes suggest to me that this is Ornithomya biloba. Have you got a clear photo of the wing?
Tony
----------
Tony Irwin
 
Ectemnius
#6 Print Post
Posted on 16-08-2018 12:10
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Location: The Netherlands
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Hello maroo & Tony,

I think it is not biloba, that species has a wider frons, see: (https://waarneming.nl/waarneming/view/161271944)
What would help is a photo of the scutellum and indeed the wings.

Due to its size and darkened genea ventrally I'd say O. chloropus…

Kind regards,

Ectemnius
 
maroo
#7 Print Post
Posted on 16-08-2018 12:55
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Location: Gothenburg, Sweden
Posts: 679
Joined: 27.10.14

Thanks fore your response!

Regarding photo of the scutellum, Im not sure if i could "produce" better pics with my camera equipment :-/

Here is a photo of the wing anyway.

Martin
maroo attached the following image:


[61.12Kb]
 
maroo
#8 Print Post
Posted on 17-08-2018 10:54
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Location: Gothenburg, Sweden
Posts: 679
Joined: 27.10.14

By the way, is it the microtrichia on wing that is the key here? or is it the wingpattern?

Do you Ectemnius (or anyone else) have any more opinion on this fly, or safe to call it a chloropus?

Best regards
Martin
 
Zeegers
#9 Print Post
Posted on 18-08-2018 08:19
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Location: Soest, NL
Posts: 18472
Joined: 21.07.04

The wing pattern is slightly off, I don’t know what is going on there.
The microtrichia are pretty difficult to see in practice, it depends on the anlge of light.
You can check for yourslef if there are 4 or 6 bristles around apex of scutellum. If 4 or less, please cjepheck thoroughly for borken bristles, they leave pores.

Theo
 
Johane
#10 Print Post
Posted on 08-11-2019 10:13
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Location: Gothenburg, Sweden
Posts: 1962
Joined: 27.08.13

Scutellum with three visible bristles. One is missing.
Johane attached the following image:


[220.76Kb]
Johan Ennerfelt
 
Johane
#11 Print Post
Posted on 08-11-2019 10:23
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Location: Gothenburg, Sweden
Posts: 1962
Joined: 27.08.13

wing with microtrichia
Johane attached the following image:


[289.07Kb]
Johan Ennerfelt
 
Johane
#12 Print Post
Posted on 08-11-2019 10:26
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Location: Gothenburg, Sweden
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.
Johane attached the following image:


[291.52Kb]
Edited by Johane on 08-11-2019 10:33
Johan Ennerfelt
 
Johane
#13 Print Post
Posted on 08-11-2019 10:34
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Location: Gothenburg, Sweden
Posts: 1962
Joined: 27.08.13

ventral side of head
Johane attached the following image:


[261.03Kb]
Johan Ennerfelt
 
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