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View Thread :: Identification queries :: Diptera (eggs, larvae, pupae)
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pupa of Mycetophilidae?
#1 Print Post
Posted on 28-04-2011 12:07
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Location: Amsterdam, NL
Posts: 905
Joined: 29.05.09

We found this 3 mm long pupa of which I believe it may belong to a Mycetophilidae or perhaps a close relative (Sciaridae?). It was not collected by me so we do not know exactly in which niche it was collected, but it was found in Klein Profijt in the Rhine Delta area, The Netherlands on oktober 6, 2010.

It has small prothoracic spiracles with several minute openings, lateral spiracles alongside the abdominal segments, except for the last and the anal segment has two pairs of lobes (see photo).
can anybody confirm the identity? or has some other idea. Family level will do just fine.
atylotus attached the following image:

#2 Print Post
Posted on 28-04-2011 14:22
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Posts: 1445
Joined: 07.11.10

Hi atylotus, I have a question! Are you sure it is pupa of Diptera and it isn't Pupa of Hymenoptera?? Because kind of this pupa is Exarate and if I understood correctly, Pupa in Nematocera is Obtect!!? Am I correct? Frown
I'll so thanks to you if you advice me! Smile
Edited by Sara21392 on 28-04-2011 14:29
Sincerely yours
#3 Print Post
Posted on 28-04-2011 15:00
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Location: Amsterdam, NL
Posts: 905
Joined: 29.05.09

Dear Sara
All the pupa of Nematocera are exarate i.e. the wings, legs and antenna are not fused, but are each within its own sheath and movable. (Cecidomyidae is an exception). In lepidoptera for instance the pupa is obtect i.e. the appendages are fused and not movable and in higher Diptera the pupa are co-arctate i.e. a hardened case without seeing any appendages. I do not know what the Hymenoptera pupa looks like, but I think they can be either exarate or obtect. So My specimen could also be a Hymenoptera, but the habitus reminds me of Diptera.
if you have another definition of exarate/obtect than enlighten me, but in Nematocera pupa the appendages are free.
#4 Print Post
Posted on 28-04-2011 20:39
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Posts: 1445
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I'm so thanks to you for your advice and informs, atylotus. Smile
Sincerely yours
Even Dankowicz
#5 Print Post
Posted on 20-03-2019 21:05

Posts: 14
Joined: 12.06.18

Yes, looks right for Sciaridae.
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