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Diptera.info :: Identification queries :: Diptera (eggs, larvae, pupae)
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Penthetria funebris (Pleciidae/Bibionidae)
ebbek
#1 Print Post
Posted on 07-12-2019 16:55
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Location: SW Sweden, Halland
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A small larvae (3-4 mm) from a forest, besides a stream, in South Sweden, at the moss Rhytidiadelphus subpinnatus. Maybe Dioma glabrata or some other Cylindrotomidae?
ebbek attached the following image:


[63.27Kb]
Edited by ebbek on 07-12-2019 21:06
 
ebbek
#2 Print Post
Posted on 07-12-2019 16:56
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Other view
Edited by ebbek on 07-12-2019 16:58
 
ebbek
#3 Print Post
Posted on 07-12-2019 17:14
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Looks very much as the moss it was found on - an impressing camouflage! It was a friend who found the larvae when he looked att the moss in the microscope to determine it.
 
atylotus
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Posted on 07-12-2019 20:12
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No cylindrotomatidae, I think this is Pleciidae and I think there is only 1 species, Pentethria funebris, but not sure though
Edited by atylotus on 07-12-2019 20:14
 
ebbek
#5 Print Post
Posted on 07-12-2019 20:54
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Location: SW Sweden, Halland
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Many thanks!

This Picture of the larvae of that species was in Stuke (2004): "Bibionidae and Pleciidae (Diptera: Nematocera) from Lower Saxony and Bremen (Germany)" and it fits very well to this larvae! In Sweden this species is placed under Bibionidae.

Best regards

Krister
ebbek attached the following image:


[59.93Kb]
Edited by ebbek on 07-12-2019 21:07
 
atylotus
#6 Print Post
Posted on 07-12-2019 21:11
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Yes, that him. Rare species.
 
ebbek
#7 Print Post
Posted on 07-12-2019 22:42
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Interesting - only a few reports from Sweden as far as I can find!
 
John Carr
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Posted on 08-12-2019 18:45
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How are larvae of Bibionidae s. str. and Pleciidae distinguished?
 
http://www.flickr.com/photos/31715949@N00
ebbek
#9 Print Post
Posted on 08-12-2019 21:29
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Location: SW Sweden, Halland
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There are no Bibionidae in Scandinavia with larvae like this one, they all look something like the Bibio sp. larvae in this photo (from a garden in South Sweden).
ebbek attached the following image:


[176.24Kb]
Edited by ebbek on 08-12-2019 22:32
 
atylotus
#10 Print Post
Posted on 09-12-2019 11:17
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besides the much longer abdominal lobes in Penthetria, the number of respiratory openings in the posterior spiracle is different. Based on described species, Penthetria has 1, Bibio 2 and Dilophus has 3 openings.
atylotus attached the following image:


[87.45Kb]
 
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