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Diptera.info :: Family forums :: Syrphidae
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Cheilosia sp.? --> Brachypalpus valgus
Michael Stemmer
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Posted on 03-04-2015 10:12
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Location: D-53572 Unkel, Germany
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Hello,

am I correct with Cheilosia sp., and can someone determine the species, if it is possible from the fotos?

Location: Germany, Rhineland-Palatinum, 53572 Unkel, river Rhine valley, Stux hill, dry and warm habitat (grapeyards), 02. 04. 2015. I found it under Isortis tinctoria (maybe hatched there?).

Thanks in advance,

Michael
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Michael Stemmer attached the following image:


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Michael Stemmer
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Michael Stemmer
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Posted on 03-04-2015 10:13
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Raphael Weniger
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Posted on 03-04-2015 18:04
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hello
I think it is a Species of Braypalpus.
best regards
Hubert
 
tristram
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Posted on 03-04-2015 18:34
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Hubert must mean Brachypalpus.
 
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Michael Stemmer
#6 Print Post
Posted on 04-04-2015 08:40
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Hello Hubert and Tristra,

Brachypalpus - that´s a new family for me. Could it possibly be Brachypalpus laphriformis, or is a closer determination from (my) foto impossible?

Thanks in advance, and greetings from the Stux hill,

Michael
 
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Raphael Weniger
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Posted on 05-04-2015 08:34
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hey Michael,
to separate the females of these two species you can look at the dust on the frons and the colour of the hindcoxa, both characters which I found difficult to see on your pictures. But the female ofBrachypalpus laphriformis would have the transverse suture on the thoracic dorsum grey dusted, which isn't in your specimen. Thats why I would say that it could be a female B. valgus. Nevertheless it is a very uncertain determination.

Thanks Tristram, you are right it was a spelling mistake of me.

Happy easter to everybody
hubert
Edited by Raphael Weniger on 05-04-2015 08:34
 
Michael Stemmer
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Posted on 05-04-2015 12:32
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Hello Hubert (and others),

thanks for your answer. I will add two more fotos, of the frons, perhaps they will help. Because none of the two considered species is frequent, a determination would be helpful. alternatively i`ll make "Brachypalpus sp., maybe valgus" out of it.

Greetings,

Michael
 
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Michael Stemmer
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Posted on 06-04-2015 11:03
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I don´t know why the upload didn´t work. One more try:
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Michael Stemmer
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Raphael Weniger
#11 Print Post
Posted on 06-04-2015 20:50
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hey,
because the frons aren't heavily dusted I am quite confident that it is B. valgus. It goes conform with the pictures you can find in the gallery for both species and also with their phenology where B. laphriformis occurs later in the year (may/june) than B. valgus (April/June).
Is there any Syrphidae Checklist for your federal state?

Best regards
hubert
 
Michael Stemmer
#12 Print Post
Posted on 07-04-2015 19:07
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Location: D-53572 Unkel, Germany
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Thanks, Hubert, for determination and explanation!

About the checklist: I have to check this.

Greetings from the river Rhine valley,

Michael
Edited by Michael Stemmer on 07-04-2015 19:14
 
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