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Larve

Posted: Sun Aug 19, 2018 4:36 pm
by vasselle
Hello everyone.
An observation of a larva found in a river water sample.
The larva is about 5 mm long.


Photo 1.
Plan 4 X fond noir.
Pano de 15 vues.
photo 4024 - Copie (Copier).png
photo 4024 - Copie (Copier).png (377.77 KiB) Viewed 1748 times
Photo 2.
Plan 10 X fond noir.
Empilement de 21 vues.
photo 4028 (Copier).jpg
photo 4028 (Copier).jpg (373.9 KiB) Viewed 1748 times
Photo 3.
Plan 10 X fond noir.
Empilement de 18 vues.
photo 4029 (Copier).jpg
photo 4029 (Copier).jpg (413.56 KiB) Viewed 1748 times
Photo 4.
Plan 20 X fond clair.
Empilement de 29 vues.
photo 4031 (Copier).jpg
photo 4031 (Copier).jpg (333.71 KiB) Viewed 1748 times
Cordialement seb

Re: Larve

Posted: Sun Aug 19, 2018 10:11 pm
by Aenima
wow - amazing images :o :shock: :)

Re: Larve

Posted: Mon Aug 20, 2018 6:01 am
by 75RR
Great detail!
Tried unsuccessfully to id it. Anyone know what it is?

Re: Larve

Posted: Mon Aug 20, 2018 10:54 am
by GaryB
Excellent!

Re: Larve

Posted: Tue Aug 21, 2018 4:11 pm
by vasselle
thank you all.
And here are 4 new pictures.

Photo 5.
plan 20 X fond clair.
Empilement de 8 vues.
photo 4032 - Copie (Copier).jpg
photo 4032 - Copie (Copier).jpg (313.6 KiB) Viewed 1659 times
Photo 6.
Plan 20 X fond clair.
Empilement de 10 vues.
photo 4033 (Copier).jpg
photo 4033 (Copier).jpg (483.93 KiB) Viewed 1659 times
Photo 7.
Plan 20 X fond clair.
Empilement de 11 vues.
photo 4074 (Copier).jpg
photo 4074 (Copier).jpg (336.46 KiB) Viewed 1659 times
Photo 8.
Plan 20 X fond clair.
Empilement de 24 vues.
photo 4075 (Copier).jpg
photo 4075 (Copier).jpg (363.5 KiB) Viewed 1659 times
Cordialement seb

Re: Larve

Posted: Tue Aug 21, 2018 4:51 pm
by SunshineLW
DUDE! Legit!

Re: Larve

Posted: Wed Aug 22, 2018 4:08 am
by actinophrys
Seb, an interesting find and nicely shown.
75RR, this is an immature fly. The problem IDing it is that it is not strictly a larva but a pupa, as shown by the developing wings, and these can look a fair bit different. I do not know a general guide, but this one looks a lot like pictures of Ceratopogonidae (punkies, no-see-ums, or biting midges), which share the same sort of abdominal spines and forward projections.

Re: Larve

Posted: Wed Aug 22, 2018 7:22 pm
by vasselle
Thank you all.
Thanks a lot actinophrys for the explanations because I did not know at all what it was

Cordialement seb

Re: Larve

Posted: Thu Aug 23, 2018 9:26 am
by 75RR
actinophrys wrote: 75RR, this is an immature fly. The problem IDing it is that it is not strictly a larva but a pupa, as shown by the developing wings, and these can look a fair bit different. I do not know a general guide, but this one looks a lot like pictures of Ceratopogonidae (punkies, no-see-ums, or biting midges), which share the same sort of abdominal spines and forward projections.
Thanks actinophrys, had not allowed for an intermediate stage. I imagine a sequence of drawings from egg through larva through pupa would be handy.
In the meantime found this:

https://www.researchgate.net/publicatio ... in_Germany