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Diptera.info :: Identification queries :: Diptera (eggs, larvae, pupae)
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Ephydridae (Hydrellia??) ID
flami
#1 Print Post
Posted on 17-10-2017 15:23
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Hi, is it possible to determine the specie of this larvae? I suppose they could be Hydrellia sp. I found them in a pond of Rome, Italy, feeding on Lemna minor. Pupation within the mine. The adults walk on the duckweed.
flami attached the following image:


[48.3Kb]
Edited by flami on 17-10-2017 15:29
 
flami
#2 Print Post
Posted on 17-10-2017 15:43
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Larva feeding on Lemna minor.
flami attached the following image:


[45.72Kb]
 
atylotus
#3 Print Post
Posted on 17-10-2017 15:46
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Hello Flami, welcome to the forum
looks like Hydrellia indeed, but ID to species level in most cases impossible. Perhaps Tony Irwin has a suggestion. He also did on my post/photo: https://diptera.i...to_id=5486
 
flami
#4 Print Post
Posted on 17-10-2017 16:02
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Hello atylotus, thank you for your answer! I have already read your post, and i found it very helpful. I suppose it could be a larva of Hydrellia albilabris or H. griseola, because of their distribution that includes Italy. I have other pictures of the puparium and the adult that could be helpful for the identification, but i have encountered some tecnical problems uploading them.
 
flami
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Posted on 17-10-2017 16:45
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Anal segment
flami attached the following image:


[70.13Kb]
 
Tony Irwin
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Posted on 17-10-2017 16:54
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This is very likely to be Hydrellia albilabris or griseola (the species most frequently associated with Lemna). They are easily distinguished as adults - see images in the gallery.
Edited by Tony Irwin on 17-10-2017 16:54
Tony
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Tony Irwin
 
flami
#7 Print Post
Posted on 17-10-2017 19:56
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Thank you very much Tony for your suggestion! Here it is a picture of an adult. Maybe H. griseola?

https://imgur.com...
Edited by flami on 17-10-2017 19:59
 
Tony Irwin
#8 Print Post
Posted on 18-10-2017 11:19
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Difficult to say while it is wet. But it looks very black, so I suspect albilabris.
Tony
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Tony Irwin
 
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