Gallery Links
Users Online
· Guests Online: 9

· Members Online: 1
Jiri Hodecek

· Total Members: 4,725
· Newest Member: Calle Ljungberg
Forum Threads
Theme Switcher
Switch to:
Last Seen Users
· Jiri HodecekOnline
· ckazilas< 5 mins
· Xespok00:24:26
· runetk00:30:29
· Carnifex00:58:08
· pierred01:15:30
· Nosferatumyia01:24:11
· libor01:44:01
· sbushes06:20:41
· John Carr08:14:33
Latest Photo Additions
View Thread :: Identification queries :: Diptera (eggs, larvae, pupae)
Who is here? 1 guest(s)
 Print Thread
unknown larvae
Gisela Merkel-Wallner
#1 Print Post
Posted on 11-10-2005 10:04

Location: Germany, Bavaria, Oberpfalz
Posts: 47
Joined: 05.07.05


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 Merkel-Wallner
#2 Print Post
Posted on 11-10-2005 10:10

Location: Germany, Bavaria, Oberpfalz
Posts: 47
Joined: 05.07.05

and this ist the whole circle of the larvae, about 1 meter in diameter.

Gisela Merkel-Wallner
#3 Print Post
Posted on 11-10-2005 10:59

Location: Awirs (Flémalle) Belgique
Posts: 901
Joined: 13.08.04

????Larva Psychodidae so-called larva "Military".
Paul Beuk
#4 Print Post
Posted on 11-10-2005 11:16
User Avatar

Super Administrator

Location: Netherlands
Posts: 18837
Joined: 11.05.04

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 Beuk on
Gisela Merkel-Wallner
#5 Print Post
Posted on 11-10-2005 17:40

Location: Germany, Bavaria, Oberpfalz
Posts: 47
Joined: 05.07.05

Dear Paul,

I thank you for the explanations.

Jump to Forum:
Similar Threads
Thread Forum Replies Last Post
Unknown sciarid? -> Possible Phytosciara sp. Diptera (adults) 5 02-12-2021 22:35
unknown fly Diptera (adults) 5 02-12-2021 16:23
unknown small fly Switzerland Diptera (adults) 4 30-11-2021 12:16
Unknown larvae => Cecidomyiidae? Diptera (eggs, larvae, pupae) 4 28-11-2021 18:54
Lauxaniidae larvae Diptera (eggs, larvae, pupae) 6 28-11-2021 18:53
Date and time
06 December 2021 10:33


Not a member yet?
Click here to register.

Forgotten your password?
Request a new one here.
Temporary email?
Due to fact this site has functionality making use of your email address, any registration using a temporary email address will be rejected.

Please, help to make
possible and enable
further improvements!
Latest Articles
Syrph the Net
Those who want to have access to the Syrph the Net database need to sign the
License Agreement -
Click to Download

Public files of Syrph the Net can be downloaded HERE

Last updated: 25.08.2011
You must login to post a message.

23.09.21 15:29
All sorted.

16.09.21 22:24
Sorry put 5 new threads in Asilidae forum instead in Syrphidae forum, can pleas an admin move it to Syrph? THANKS, Norbert

09.09.21 07:48

09.09.21 07:47
wing ventation is totally different

03.09.21 12:51
Hi, what's the major difference between dolichopodidae and rhagionidae? Can someone help me? Thanks!

28.06.21 15:24
thx TO eklans

03.06.21 11:11
@Tony Irwin Thank you Tony! I've emailed you there Pfft

02.06.21 22:26
Rob - can you PM me with an e-mail address, and I'll send it over.

02.06.21 13:16
Hello chaps! Does anyone have a copy of: Revision of the willow catkin flies, genus Egle Robineau-Desvoidy (Diptera: Anthomyiidae), in Europe and neighbouring areas ?? I'd be ever so grateful! Rob

31.05.21 14:31
The part that got deleted is "longer, dark median stripe on thorax"

Render time: 1.53 seconds | 159,714,889 unique visits