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cca 2 - 3 mm
from tree-holes /Quercus sp./
Slovakia

thanks a lot
Jozef

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If I would make a guess, than a Fannia species is an option. But these feathery prothoracic spiracles (?) are a bit odd (to me).

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Resembles Phoridae pupa. Some Phoridae genera have such horns, Dohrniphora for example, but the end of this larva is without projections. With much doubt, Phoridae??

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Scatopsidae - Rhexosa, perhaps?

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I wonder whether it has head - if no, then it is from higher Diptera. Possibly some specialists in Fanniidae, Phoridae and Scatopsidae may recognize this larva?

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perhaps one could check with Ferrar (1987) on the immature cyclorrhapha. I do not have this book complete.

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I would say Scatopsidae, too. Not certain about Rhexoza, though.

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other photos








Thank you all so much!
Jozef

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Those certainly look like the Rhexoza's in the books.

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Except the Rhexoza pictures I have seen have branched processes - but maybe one or more of the European species has unbranched processes?
Josef - Have you got any adult scatopsids from the tree hole?

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Unfortunately I have any scatopsids adults from tree hole(s)
I have only larvae
http://www.dipter...pid=162668

But I'll try it found.

Thank you very much for ID

Jozef

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Well, I'd say that this pupa is from your larvae - it would be great if you can collect some live larvae (or live pupae which would be easier to rear).
What other insects were in the tree hole? Was there standing water in the hole, or just damp leaves? - I'd like to have a look at some similar habitats here.

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I study mostly (only) water field tree holes.
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