[Syrphidae] Re: larva

[Nobby Scarlet]

Hello Cyrille,

Thank you for this information! It's an impressive website.

The larva comes from a running water but it runs slowly so had some 
rather standing water species (of water beetles) also.

It does not fit Pocota but i'm also nog sure what species it does 
fits...

Greetings,
Nobby

------ Origineel bericht ------
Van: "Cyrille DUSSAIX" <cyrille.dussaix at orange.fr>
Aan: syrphidae at lists.nottingham.ac.uk
Verzonden: 24-6-2021 15:50:04
Onderwerp: [Syrphidae] Re: larva

>Hi,
>First, where was the larva found?
>Maybe, Pocota personata?
>See attached document (description) and this website for various 
>illustrations : 
>http://cyrille.dussaix.pagesperso-orange.fr/_SYRPHIDAE_LARVA_DC2020/_Index.html
>Thank of your opinion after control.
>Greetings.
>Cyrille.
>
>Le 22/06/2021 à 12:27, Nobby Scarlet a écrit :
>>Hello Francis,
>>
>>In attachment some more pictures but i have a hard time taking good 
>>pictures...
>>
>>Maybe these help and off course i understand if further determination 
>>is not possible by  means of pictures.
>>
>>I was surprised by the extruded anal gills and did not see this in any 
>>picture of hoverfly larvae and learned a lot thanks to the reply of 
>>members of this list!
>>
>>Thank you !
>>Nobby
>>
>>------ Origineel bericht ------
>>Van: "Francis Gilbert" <Francis.Gilbert at nottingham.ac.uk>
>>Aan: "Nobby Scarlet" <nobby.thys at scarlet.be>; "hoverfly discussion 
>>list" <syrphidae at lists.nottingham.ac.uk>
>>Verzonden: 22-6-2021 09:36:56
>>Onderwerp: RE: [Syrphidae] larva
>>
>>>hi Nobby
>>>
>>>
>>>
>>>The larva seems to  be an eristaline but we need a picture of the 
>>>whole larva, really. The "smaller kind of tubes" are the extruded 
>>>anal "gills" that are usually held within the rectum, and are almost 
>>>certainly involved in active ionic exchanges. If we could see them 
>>>all, together with any lappets at the end of the body (base of the 
>>>'tail') and the anterior spiracles clearly (they are there but very 
>>>out of focus) then we might stand a chance of identifying it.
>>>
>>>
>>>
>>>Best wishes
>>>
>>>
>>>
>>>Francis
>>>
>>>
>>>
>>>
>>>
>>>From:syrphidae-bounces at lists.nottingham.ac.uk 
>>>[mailto:syrphidae-bounces at lists.nottingham.ac.uk] On Behalf Of Nobby 
>>>Scarlet
>>>Sent: 21 June 2021 19:27
>>>To: hoverfly discussion list <syrphidae at lists.nottingham.ac.uk>
>>>Subject: [Syrphidae] larva
>>>
>>>
>>>
>>>>Hello,
>>>
>>>
>>>I found this larva in a running water in Limburg.
>>>
>>>I have never seen a larve with a respiratory tube and different 
>>>smallers kind of tubes near the base...
>>>
>>>
>>>
>>>Does anyone recognize the species of genus ?
>>>
>>>
>>>
>>>Greetings,
>>>
>>>Nobby
>>>
>>>
>>>>
>>>
>>>
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