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Diptera.info :: Family forums :: Syrphidae
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Heringia? - dark and very hairy - 23.04.2023
brigitteu
#1 Print Post
Posted on 04-11-2023 12:34
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Location: Switzerland
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Joined: 08.07.09

Hi

Switzerland, Altendorf, near lake of zurich, 430 m, terrace, 23.04.2023

Dark and very hairy. Face looks not much like Cheilosia ... I have no idea. Possible for ID?

Thanks and kind regards, Brigitte
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Edited by brigitteu on 07-11-2023 21:46
 
brigitteu
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Posted on 04-11-2023 12:35
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..
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eklans
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Posted on 04-11-2023 18:31
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Location: Franconia, Germany
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It's not more than a guess, as photos of females are hard to find and I have never seen a Heringia: Heringia brevidens.
based on van Veen (2010): Hoverflies of Northwest Europe
and some information from Steven Falks website https://www.flick...442725613/:
"and the frons with bands of black and pale hairs when viewed from the side"
Edited by eklans on 04-11-2023 18:31
Greetings, Eric Kloeckner
 
brigitteu
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Posted on 05-11-2023 08:16
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Hi Eric

I have never seen a Heringia too. That is great and exciting found for me. Thank you for your reply to my posting!

I'm not so advanced that I can work my way through a key, especially when you're not supposed to recognize and/or correctly evaluate something but I have the book of van Veen (2010): Hoverflies of Northwest Europe.
The only thing I can see well are the antennaes. The Key starts with them and ends by Heringia (Heringia) heringi when the 3rd segment is elongate, 2-3 times as long as broad. I'll add a cut out pic of the antennaes. What do you think about?

Kind regards, Brigitte
brigitteu attached the following image:


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Edited by brigitteu on 05-11-2023 08:18
 
eklans
#5 Print Post
Posted on 05-11-2023 10:21
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Location: Franconia, Germany
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Hi Brigitte, I'm not an expert and in my humble opinion van Veen's "elongate" means that the length of the 3rd segment is 2-3 times the height (see his figure 405). This correlates to the image of the female in Falk's site (+ the black and pale hairs!). Van Veen describes mainly the males so we should wait for an expert to agree or disagree.

I'm confident that if it's a Heringia, it's not heringi because of the antenna.
Not pubescens: eyes dark haired.
Not verrucula: eyes (hairs) sparse, inconspicuous and pale (?)
Falk: hairs more extensively pale in latitarsis and more extensively black in vitripennis.
remain: brevidens and fulvimanus?
Greetings, Eric Kloeckner
 
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