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Diptera.info :: Identification queries :: Diptera (eggs, larvae, pupae)
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unknown predator on Rhagium spec.->Forcipomyia
Joerg Brucklacher
#1 Print Post
Posted on 07-04-2021 14:48
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Location: Southern Germany BW
Posts: 60
Joined: 05.04.21

Last year (09.09.2020) I found under bark of a dead silver fir in an empty place of a Rhagium larva a group of small larvae. Seemed they had killed the Rhagium.
A few meters beside that on the same log I found a group of pupae, obviously of the same species. Notably all oriented together around a middle.
I tried to breed them, but all of them were parasitized (Chalcidoidea ?).
I think, it's a fascinating story for me, and I'd like to understand what happened.
Can anybody identify this ? I think they should be diptera ...
I will attach a few pictures.

Thank you,

Jörg Brucklacher
Joerg Brucklacher attached the following image:


[299.44Kb]
Edited by Joerg Brucklacher on 08-04-2021 12:12
 
Joerg Brucklacher
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Posted on 07-04-2021 14:51
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pupae
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Edited by Joerg Brucklacher on 07-04-2021 14:54
 
Joerg Brucklacher
#3 Print Post
Posted on 07-04-2021 14:54
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closeup1
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Joerg Brucklacher
#4 Print Post
Posted on 07-04-2021 14:55
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closeup2
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Joerg Brucklacher
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Posted on 07-04-2021 14:56
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closeup3
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Joerg Brucklacher
#6 Print Post
Posted on 07-04-2021 14:57
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parasitoid
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eklans
#7 Print Post
Posted on 07-04-2021 14:58
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Hi Jörg, I think these are larvae and pupae of Forcipomyia (Ceratopogonidae).

Greetings, Eric
 
Joerg Brucklacher
#8 Print Post
Posted on 07-04-2021 15:46
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Location: Southern Germany BW
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fits perfect - found this page : https://www.chaosofdelight.org/forcipomyia with a lot of information and photos.

Thank you für this hint !

Jörg
 
atylotus
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Posted on 07-04-2021 16:05
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Forcipomyia for sure
 
Joerg Brucklacher
#10 Print Post
Posted on 08-04-2021 11:00
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Location: Southern Germany BW
Posts: 60
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were they killing the Rhagium or just cleaning up the mess ?
 
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