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Diptera.info :: Identification queries :: Diptera (adults)
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Hyadina humeralis? > Hyadina guttata
maico
#1 Print Post
Posted on 11-05-2022 16:31
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 I believe this to be a Hyadina sp. but I can't figure out the species.
Is anyone more familiar with Ephydridae willing to shine a light on this?

Wilshire UK, 2021.08.17
Suction sample
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Edited by maico on 12-05-2022 13:24
 
maico
#2 Print Post
Posted on 11-05-2022 16:34
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maico
#3 Print Post
Posted on 11-05-2022 16:35
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maico
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Posted on 11-05-2022 16:36
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maico
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Posted on 11-05-2022 16:36
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Tony Irwin
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Posted on 12-05-2022 00:36
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 On balance I would say Hyadina guttata (should have clear patches either side of the posterior cross-vein, yellow palps, and two round dust-spots on the occiput)
Tony
----------
Tony Irwin
 
maico
#7 Print Post
Posted on 12-05-2022 12:31
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 Thanks, Tony.
I just had another look and I can indeed see two clear patches on both sides of the posterior cross-vein. I had misread the key and was expecting it to look differently!
Two round grey-dusted spots on the occiput too. I'll put this one down as Hyadina guttata.
 
nielsyese
#8 Print Post
Posted on 09-09-2022 20:11
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 Does somebody know how valuable is the following feature, which is mentioned in Stuke (2010):

* face golden dusted... Hyadina guttata (Fallen, 1813)
* face silver dusted.. Hyadina humeralis auct., nec. Becker, 1896

Personally, I would say the face in these pictures is silver dusted (favouring humeralis), but that would contradict the clear patches (favouring guttata).
Best wishes, Niels-Jan Dek
 
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