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Diptera.info :: Identification queries :: Diptera (eggs, larvae, pupae)
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Stratiomyidae larva
libretto
#1 Print Post
Posted on 03-10-2010 23:03
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Location: Roubaix - France
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Joined: 02.10.10

Found in a natural pond in Villeneuve d'asq, north of France

One photo (the images are best on the video) :
piscines-ecologiques.net/files/2010/10/larve-dipt%C3%A8re-500x427.jpg

One vidéo :
YouTube Video


If you can read french, one article on "http://piscines-e...e-diptere/".

Can anyone help me to confirm this identification and to indicate a more precise species ?

Thanks Yann
 
http://piscines-ecologiques.net/larve-diptere/
Paul Beuk
#2 Print Post
Posted on 04-10-2010 11:02
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It closely resemble Rozkosny's illustration of Oplodontha viridula.
Paul

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atylotus
#3 Print Post
Posted on 04-10-2010 12:36
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I agree with Paul. O. viridula is characteristic for having pairs of hairbrushes on the ventro-lateral side of the head, and at some point in the movie you may see them. And My experience says that this broad white stripe on the thorax is unique too.
 
libretto
#4 Print Post
Posted on 04-10-2010 20:44
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Location: Roubaix - France
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Dank u well, herren
The next days I've found the same kind of larva but much darker and without the white stripe on the thorax.
Another Oplondontha viridula ?
piscines-ecologiques.net/files/2010/10/Stratiomyidae-avec-soies-500x311.jpg
 
http://piscines-ecologiques.net/larve-diptere/
Paul Beuk
#5 Print Post
Posted on 04-10-2010 20:45
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Terminal segment narrower than in the first picture. Perhaps Odontomyia tigrina?
Paul

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atylotus
#6 Print Post
Posted on 04-10-2010 22:56
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Could be Oplodontha or O. tigrina. The picture (that is the larva) is too dark to be certain. The problem with O. viridula larva is that there are two different colorpatterns (male and female?) a lighter one with this white broad stripe and a darker variant, with only a few smaller yellowish stripes. This colorpattern is almost similar to O. tigrina, but the latter has different hairs on the body and no hairbrushes at the ventral side of the head.
 
libretto
#7 Print Post
Posted on 05-10-2010 07:52
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Location: Roubaix - France
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Next week, I will try to catch another one. They share the same size and the same behaviour. How can you cath these airbrush without killing the larva ?
 
http://piscines-ecologiques.net/larve-diptere/
atylotus
#8 Print Post
Posted on 05-10-2010 08:50
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These brushes can be seen in the field even using low magnification. The brushes are about large as the headheight. These brushes are absent in other aquatic Stratiomyds incl. Odontomyia.
atylotus attached the following image:


[121.04Kb]
 
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25.04.17 14:14
Hello, can any1 tell me if both male and female Empis flies eat other flies or is it just the female? Thx

21.04.17 15:08
Thanks very much Paul

18.04.17 20:24
Nice occur on the Dutch television Paul!

11.04.17 13:37
In Dutch some would use it as plural, for 'exemplaar' (exemplar or specimen). Ten exx. then is ten specimens.

10.04.17 16:21
Thanks Phil I am thinking exuviae but I can't find the abbrev. so perhaps so

09.04.17 12:25
I haven't come across it but I suspect it means 'examples'.

08.04.17 11:27
Hell has anyone come across the meaning of exx? and what it means

01.04.17 11:43
Thanks very much

25.03.17 21:53
Ibid. is short for Latin ibidem, meaning 'in the same place', so = 'same as the previous reference'. Smile

25.03.17 13:09
Cab any1 help out with the full name if the journal IBID Thx

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