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View Thread :: Identification queries :: Diptera (eggs, larvae, pupae)
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large Nematocera pupa in tree stump
Louis Boumans
#1 Print Post
Posted on 02-04-2006 22:40

Location: NO Oslo
Posts: 261
Joined: 09.06.04

Wriggling pupa found under bark in stump of Douglas fir (Pseudotsuga menziesii).
It is rather large: 13 mm long. Covered with mites.

Because of its size, i thought it might be Bibionidae, but i don't know if these occur in decaying wood at all. I will try to rear it.

Any suggestions?
Louis Boumans attached the following image:

Edited by Louis Boumans on 02-04-2006 22:42
#2 Print Post
Posted on 22-04-2006 17:20
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Location: Texas A&M University, USA
Posts: 21
Joined: 10.02.06


What is the verdict? Did you rear it?

I would have to say that this is not a fly pupae. I would have to guess that it is belongs to some Coleopteran family, like Elateridae.
Louis Boumans
#3 Print Post
Posted on 22-04-2006 20:28

Location: NO Oslo
Posts: 261
Joined: 09.06.04

Hi Totipotent,

It is a comforting thought that it was 'just' a coleopteran, because it died. You're right it should have emerged by now. It was going to emerge, and darkened already. Then a bunch of small coleoptera larvae that had been hiding in the substrate accompanied it. At first they seemed harmless to me, but the bastards did actually eat my pupa Shock !
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How do I post ? Smile

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Ok... lower case naming for images.. understood,Lothar

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I uploadad a jpg, but it is not visible in the thread...Lothar

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