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Diptera.info :: Identification queries :: Diptera (adults)
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Oxycera nigricornis
helge
#1 Print Post
Posted on 13-01-2021 13:05
Member

Location: Austria
Posts: 817
Joined: 10.02.16

Austria, June.

Further ID possible?

Thank you for your help.

Helge
helge attached the following image:


[211.6Kb]
Edited by helge on 14-01-2021 16:07
 
eklans
#2 Print Post
Posted on 13-01-2021 14:48
Member

Location: Franconia, Germany
Posts: 843
Joined: 11.11.18

Hi Helge, I think it's a male Oxycera nigricornis (though I'm slightly confused by the yellow dots on the back).

Greetings, Eric
Edited by eklans on 13-01-2021 14:52
 
Zeegers
#3 Print Post
Posted on 14-01-2021 08:34
Member

Location: Soest, NL
Posts: 15548
Joined: 21.07.04

Interesting observation by Eric. These yellow spots shouldn't be there, according to Rozkosny (1982).
"Mesonotum medially black, at most with small yellow spots on notopleura, transverse suture and postalar calli'

That said, I totally agree with male nigricornis.

@Helge, it would be helpful if you could mention altitude, especially in those cases in which the altitude is above 1000 m. Thanks


Theo
 
helge
#4 Print Post
Posted on 14-01-2021 16:06
Member

Location: Austria
Posts: 817
Joined: 10.02.16

Ok, thank you both!
I also wondered about these spots.

Photo was taken by a friend - unfortunately I dont know the altitude, but I will ask him.

Helge
Edited by helge on 14-01-2021 16:08
 
Zeegers
#5 Print Post
Posted on 14-01-2021 17:19
Member

Location: Soest, NL
Posts: 15548
Joined: 21.07.04

Well, in this case it is clearly no pseudoamoena, so altitude is no longer necessary.

Theo
 
helge
#6 Print Post
Posted on 15-01-2021 10:57
Member

Location: Austria
Posts: 817
Joined: 10.02.16

Hi Theo,

it was found at just under 1000 metres above sea level (940m a.s.l.).

Why is it no longer important?

Helge
 
Zeegers
#7 Print Post
Posted on 15-01-2021 12:37
Member

Location: Soest, NL
Posts: 15548
Joined: 21.07.04

It has become clear, it is not a strict alpine species.
In general, especially in aberrant specimens, having all information available like locality, date and altitude might help. If for instance, the altitude is 200 m. asl., I can excllude Glaucops hirsutus for sure.

If you don’t like altitude, your only option is to migrate to the Netherlands Smile

Theo
 
helge
#8 Print Post
Posted on 15-01-2021 12:52
Member

Location: Austria
Posts: 817
Joined: 10.02.16

Thank you Theo!

hehe Grin No, I will not move away from my beloved Alps (;
 
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Date and time
27 January 2021 18:08
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