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Diptera.info :: Identification queries :: Diptera (adults)
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Female laying eggs Therevidae - Thereva unica
Liliane D
#1 Print Post
Posted on 13-09-2024 12:12
Member

Location: France
Posts: 687
Joined: 17.08.17

Hello,
In the south of France on September 12, 2024.
She was laying eggs in the ground.
Length of the body: 12 mm visible to which it is necessary to add a little of the end of the abdomen sunk in the ground.
Thank you for your advice on its identification.
Liliane D attached the following image:


[201.12Kb]
Edited by Liliane D on 13-09-2024 15:36
 
Liliane D
#2 Print Post
Posted on 13-09-2024 12:13
Member

Location: France
Posts: 687
Joined: 17.08.17

Other views, including the face
Liliane D attached the following image:


[170.88Kb]
 
eklans
#3 Print Post
Posted on 13-09-2024 12:48
Member

Location: Franconia, Germany
Posts: 3639
Joined: 11.11.18

Hello Liliane, it's one of the Therevidae, could be Thereva unica (bipunctata).
Greetings, Eric Kloeckner
 
Liliane D
#4 Print Post
Posted on 13-09-2024 13:08
Member

Location: France
Posts: 687
Joined: 17.08.17

Thanks Eric,
This is a new family for me.
I read in this document https://home.hccnet.nl/mp.van.veen/therevidae/therevidae.html#Thereva%20unica that it could be Thereva unica (ex bipunctata) or T. oculata. The size I measured would better match the second and I'll look if there are any illustrations available.
Do you know this species?
 
eklans
#5 Print Post
Posted on 13-09-2024 13:48
Member

Location: Franconia, Germany
Posts: 3639
Joined: 11.11.18

I'm sorry but I do not know T. oculata and I've never seen a photo of it.
Greetings, Eric Kloeckner
 
Liliane D
#6 Print Post
Posted on 13-09-2024 15:36
Member

Location: France
Posts: 687
Joined: 17.08.17

I've only found one illustration of T. oculata and it doesn't look like it. I agree with you that T. unica is the most likely.
 
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