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Diptera.info :: Identification queries :: Diptera (adults)
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Thereva
alon
#1 Print Post
Posted on 08-07-2020 20:33
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Location: Poland
Posts: 382
Joined: 04.05.07

Can someone help me with these flies?
20.06.2020, northern Poland, Tczew (CE59)
alon attached the following image:


[224.27Kb]
Edited by alon on 08-07-2020 20:35
 
alon
#2 Print Post
Posted on 08-07-2020 20:34
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Location: Poland
Posts: 382
Joined: 04.05.07

male
alon attached the following image:


[255.96Kb]
 
Sundew
#3 Print Post
Posted on 09-07-2020 11:23
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Location: Berlin and Baden-Württemberg, Germany
Posts: 3939
Joined: 28.07.07

Sorry, more than Thereva spec. is not possible for this couple. The lower picture shows the male, and Thereva males cannot be told apart from a photo. The upper female nicely shows the black spot between the eyes, but we need to see more characters, one picture is not enough. Compare the key https://home.hccn...ml#Thereva to understand which are the decisive characters to identify Thereva females (at least colour pattern of the tergites and haltere colour).
Regards, Sundew
Edited by Sundew on 09-07-2020 11:29
 
alon
#4 Print Post
Posted on 10-07-2020 17:30
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Location: Poland
Posts: 382
Joined: 04.05.07

Thanks a lot. Unfortunately, I only have one picture of this pair.
I had a similar fly in thread https://www.diptera.info/forum/viewthread.php?thread_id=39894. There are more details.
 
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30 April 2026 21:29
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