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Diptera.info :: Family forums :: Syrphidae
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Rhingia ID? --> Rhingia rostrata
Matzke-Hajek
#1 Print Post
Posted on 29-10-2021 17:14
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Location: Alfter, Germany
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Who can confirm my determination? Rhingia rostrata?
Thanks in advance
Regards - Günter
Matzke-Hajek attached the following image:


[176.82Kb]
Edited by Matzke-Hajek on 03-04-2022 11:06
 
Matzke-Hajek
#2 Print Post
Posted on 29-10-2021 17:19
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I forgot to note date and locality:
Today (29. Oct. 2021) in my garden in Alfter-Witterschlick near Bonn, Germany.
 
eklans
#3 Print Post
Posted on 29-10-2021 17:25
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Location: Franconia, Germany
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Hi Günter, that was my question. It looks exactly like rostrata (mainly red legs, thorax bluegrey...) but this seems to be a spring species. Only campestris should be in the air in October. Do you have a shrper view of the arista?
Edited by eklans on 29-10-2021 17:25
Greetings, Eric
 
Matzke-Hajek
#4 Print Post
Posted on 29-10-2021 17:43
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here another foto of the head...
 
eklans
#5 Print Post
Posted on 29-10-2021 17:51
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There's a second generation - peak September - until October. So I'm quite sure it is rostrata. (The new foto hasn't arrived yet)
Greetings, Eric
 
Matzke-Hajek
#6 Print Post
Posted on 30-10-2021 08:09
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something went wrong, sorry, second try
 
Matzke-Hajek
#7 Print Post
Posted on 30-10-2021 08:12
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grrr
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eklans
#8 Print Post
Posted on 30-10-2021 08:51
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Location: Franconia, Germany
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Yes, looks like the arista is bare (rostrata)!
Greetings, Eric
 
Matzke-Hajek
#9 Print Post
Posted on 30-10-2021 12:07
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Leg colour, lack of black margins of abdomen, and blueish grey thorax led me to rostrata too. Some keys depend on ratio of snout length to eye diameter, but this depends on angle of view and seems not reliable at all. But I didn't know about the phenology - so thanks for your expertise!
Günter
 
Karsten Thomsen
#10 Print Post
Posted on 20-01-2022 12:59
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Perhaps you should edit the title bar in accordance with ID.
 
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