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 Peplomyza cf litura
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| Thoma2008 |
Posted on 08-07-2023 07:43
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Member Location: Posts: 70 Joined: 14.04.23 |
Hello, (Body-)Length about 2.2 mm Found at the edge of mixed beech forrest. 7th July 2023 Konstanz, Germany, Lake Constance area, Position 47.692528 N, 9.177509E 480 m above sea level. Peplomyza sp.? Peplomyza litura or Peplomyza discoidea? Thank you, Thomas Edited by Thoma2008 on 30-07-2023 08:38 |
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| Thoma2008 |
Posted on 08-07-2023 07:44
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Member Location: Posts: 70 Joined: 14.04.23 |
photo 2 |
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| Thoma2008 |
Posted on 08-07-2023 07:45
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Member Location: Posts: 70 Joined: 14.04.23 |
photo 3 |
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| Thoma2008 |
Posted on 08-07-2023 07:45
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Member Location: Posts: 70 Joined: 14.04.23 |
photo 4
Edited by Thoma2008 on 08-07-2023 07:53 |
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| Thoma2008 |
Posted on 30-07-2023 08:38
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Member Location: Posts: 70 Joined: 14.04.23 |
I found following criterion "As can be seen from the accompanying photographs, Peplomyza litura is quite easily identified by the rather smoky-brown wings that are almost black in their rear half. The thorax is also streaked and the eyes are a rather vivid red. All the legs are entirely pale-coloured – there is one other British species of Peplomyza, P. discoidea, which looks very similar to P. litura except that all the legs are partly dark-coloured." https://stories.rbge.org.uk/archives/23236 This is in line with the photos from P. discoidea presented at https://www.gbif.org/occurrence/gallery?taxon_key=1569881 and the photos for Peplomyza litura https://www.gbif.org/occurrence/gallery?taxon_key=1569883 Furtheremore the dark colouration in Peplomyza litura is less present in the frontal lower part of the wings when compared to P. discoidea. => Peplomyza litura. Please feel free to disagree with me! I am just learning.... Thomas Edited by Thoma2008 on 30-07-2023 08:39 |
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| Juergen Peters |
Posted on 30-07-2023 08:53
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 Member Location: Posts: 13502 Joined: 11.09.04 |
Hello, what is with the rather recently introduced Peplomyza intermedia? Best regards, Jürgen -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Juergen Peters Borgholzhausen, Germany WWW: http://insektenfo... -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= |
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| Thoma2008 |
Posted on 30-07-2023 09:19
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Member Location: Posts: 70 Joined: 14.04.23 |
Dear Jürgen, Thank you for your kind reply. Good argument! Honestly, I was not aware that this species is also present in this area.... That makes it more complicated! Do you know of any critera to distinguish both species based on photos? I may then look on other photos I took if I can find those criteria. I do not know if the following is a strong or non-relevant criterion for the distinction of Peplomyza intermedia and Peplomyza litura (=> please disagree). Based on the photos I have seen from Peplomyza intermedia, there are just two but broad dark bands on the back whereas P. litura has four smaller ones. For example: https://www.biodiversity4all.org/taxa/1087570-Peplomyza-intermedia https://www.kozanek.com/en/insects/3289/59/3232/ https://www.izeltlabuak.hu/faj/peplomyza-intermedia If (!) this should be a strong criterion, I would still end up with Peplomyza litura. Best regards, Thomas |
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| Juergen Peters |
Posted on 30-07-2023 16:21
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Member Location: Posts: 13502 Joined: 11.09.04 |
Hello Thomas, sorry, but I can't tell you anything more. I'm no expert, I only read of Peplomyza intermedia, with made all my own Peplomyza "identifications" rather worthless... 
Best regards, Jürgen -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Juergen Peters Borgholzhausen, Germany WWW: http://insektenfo... -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= |
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but don't see the image in the post.
