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Diptera.info » Identification queries » Diptera (eggs, larvae, pupae)
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unknown larvae
Gisela Merkel-Wallner
Hello,

can somebody identify this? The picture were taken ba Christian Stiersdorfer in the NP Bayerischer Wald (Bavarian Forest), the 12. August 2005. The larvae always crowled in the circle. I never have seen that and have no idea, what it is.

Greetings and thanks for your help
Gisela
www.diptera.info/forim/4-0856-1.jpg
 
Gisela Merkel-Wallner
and this ist the whole circle of the larvae, about 1 meter in diameter.

Greetings
Gisela Merkel-Wallner
www.diptera.info/forim/4-0856-2.jpg
 
cthirion
????Larva Psychodidae so-called larva "Military".
cthirion
 
http://www.cthirion.com/
Paul Beuk
They are larvae of Sciaridae. I quote from the Manual of Nearctic Diptera volume 1, p. 249:
Peculiar mass movements by some sciarid larvae have been well-documented, but the purpose of this behavior has not been investigated adequately.


It appears as if they were 'on the march' and that the end of the head of the mass met the tail and that they are now crawling in circles.

Reference: Steffan, W.A., 1981. Sciaridae. In: <i>Manual of Nearctic Diptera Volume 1</i> (J.F. McAlpine, ed.): 247-255.
Paul

- - - -

Paul Beuk on https://diptera.info
 
diptera.info
Gisela Merkel-Wallner
Dear Paul,

I thank you for the explanations.

Gisela
 
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Date and time
24 November 2024 11:19
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17.08.23 15:23
Aneomochtherus

17.08.23 13:54
Tony, I HAD a blank in the file name. Sorry!

17.08.23 13:44
Tony, thanks! I tried it (see "Cylindromyia" Wink but don't see the image in the post.

17.08.23 11:37
pjt - just send the post and attached image. Do not preview thread, as this will lose the link to the image,

16.08.23 08:37
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