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Diptera.info :: Identification queries :: Diptera (adults)
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Istochaeta cinerea, male
helge
#1 Print Post
Posted on 18-02-2020 08:40
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Location: Austria
Posts: 1322
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 Location: Austria, Springtime (April)

Thank you for your help!
helge attached the following image:


[159.05Kb]
Edited by helge on 24-02-2020 09:25
 
helge
#2 Print Post
Posted on 18-02-2020 08:40
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helge attached the following image:


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helge
#3 Print Post
Posted on 18-02-2020 08:40
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helge
#4 Print Post
Posted on 18-02-2020 08:41
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Zeegers
#5 Print Post
Posted on 18-02-2020 19:18
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Location: Soest, NL
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 Istochaeta or Baumhaueria. Not closely related, but surprising similar on picture. Date strongly suggests Baumhaueria.

Very rare species in central Europe !

Theo
 
helge
#6 Print Post
Posted on 19-02-2020 18:54
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Location: Austria
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 Thank you Theo, I will examine the genital in the next few days.

Helge
 
helge
#7 Print Post
Posted on 22-02-2020 23:15
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helge wrote:
Thank you Theo, I will examine the genital in the next few days.

Helge
helge attached the following image:


[123.92Kb]
 
helge
#8 Print Post
Posted on 22-02-2020 23:15
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helge
#9 Print Post
Posted on 22-02-2020 23:16
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helge attached the following image:


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Zeegers
#10 Print Post
Posted on 23-02-2020 08:33
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 Thanks. What rally would help, is a picture of the thorax dorsolateral, and then please the right side, since the left side is destroyed by the pin.

Theo
 
helge
#11 Print Post
Posted on 23-02-2020 11:53
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Location: Austria
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 thank you Theo, here some more pics..

Helge
helge attached the following image:


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helge
#12 Print Post
Posted on 23-02-2020 11:53
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helge
#13 Print Post
Posted on 23-02-2020 11:54
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helge
#14 Print Post
Posted on 23-02-2020 11:55
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Zeegers
#15 Print Post
Posted on 23-02-2020 12:32
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 Thank, you, excellent work and surprise: it is Istochaeta after all.
Now we need to work on the species.

Theo
 
helge
#16 Print Post
Posted on 23-02-2020 14:06
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Location: Austria
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 Thank you for your efforts Theo!!

I will make some new photos of the necessary details.
 
Zeegers
#17 Print Post
Posted on 23-02-2020 19:39
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Location: Soest, NL
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 So, it is the male of Istochaeta cinerea.
On the wing from end of April till begin of June, hence my initial doubts.

It is a very rare species in central Europe, so excellent find !

All Istochaeta are parasitoids of Melolonthinae, Rhizotrogus, Amphimallon and so on.


Theo
 
John Carr
#18 Print Post
Posted on 23-02-2020 21:44
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Zeegers wrote:
All Istochaeta are parasitoids of Melolonthinae, Rhizotrogus, Amphimallon and so on.


Outside of Europe, some other scarab beetles are parasitized. In America we have I. aldrichi imported from Japan to attack the "Japanese Beetle" Popillia japonica.
 
http://www.flickr.com/photos/31715949@N00
Zeegers
#19 Print Post
Posted on 24-02-2020 07:11
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 Sorry for my European bias.

Theo
 
helge
#20 Print Post
Posted on 24-02-2020 09:39
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Location: Austria
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 Thank you one´s again Theo, happy end!! TumbsUp

And thank you both for the interesting info.

Helge
 
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07.03.24 00:01
Some flies preserved in ethanol and then pinned often get the eyes sunken, how can this be avoided? Best answer: I usually keep alcohol-collected material in alcohol

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