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Phryganeidae Caddisfly Larva Pictures

 This "specimen" is actually two caddis larvae fighting each other over a case. The case is a hollow tube; one larva would go in the back end, presumably bite the other, and chase it out. The invader crawled forward into the case while the other one fled, and then it went around to the back and bit the first one. They did this several times, and I recorded it on video.

This caddisfly was collected from unknown on March 1st, 2004 and added to Troutnut.com on January 25th, 2006.

Video Clip

Two Phryganeidae caddis larvae fighting over a case
Caddisfly larvae of this family can easily leave and re-enters their cases. I caught two of them playing musical chairs or something with this one... funny!
Locationunknown
Date ShotMar 1, 2004
Date AddedMar 31, 2006
AuthorTroutnut

Pictures

Recent Discussions of this Larva

this video is fascinating! 15 Replies »
Posted by Creno on Oct 23, 2011
Last reply on Oct 26, 2011 by Oldredbarn
Not sure why I didn't see this before - just another hidden wonder on your site I guess. Did you notice they seem to run around the short side of the case? I suspect they should know what side is the short side is but still..... why? Energy conservation doesn't make alot of sense since if they were conserving energy it would seem they would have quit alot earlier. What happened after they stopped? Did they start over? I thought they would have tired out way before they did. Did you have a hot light on the tray? absolutely fascinating! Thanks
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