Brachycentrus (Grannoms) Caddisfly Pupa Pictures
Classification
Kingdom Animalia (Animals)
» Phylum Arthropoda (Arthropods)
» Class Insecta (Insects)
» Order Trichoptera (Caddisflies)
» Family Brachycentridae (Apple Caddis and Grannoms)
» Genus Brachycentrus (Grannoms)
It was very hard to extract this thing from its case, so there's a bit of extra goo near the head from where I accidentally punctured it.
This caddisfly was collected from the northeastern United States on April 14th, 2007 and added to Troutnut.com on April 22nd, 2007.
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Here you can see the membrane the larva created to seal off its case for pupation.
CameraCanon EOS 20D
I wasn't so sure I would get this thing out of its case intact, so I took a picture during the extraction attempt. I did end up knocking a few legs off in the process... oops.
CameraCanon EOS 20D
The structure on the far right in this picture helped tightly attache the case to its rock.
CameraCanon EOS 20D
This angle shows off the square cross-section of the case. It has an incredibly tidy log cabin look to it.
CameraCanon EOS 20D
Recent Discussions of this Pupa
Grannom Photos 15 Replies »
Jason, great photos. This is what I expect a Grannom and its case to look like. It's clear to me that the bugs I mention in my previous post aren't Grannoms. Their cases aren't nearly so neat, as David notes Grannoms should be, and they aren't shaped at all like the cases you posted above. I think Roger is on to something with his photos, and Quill Gordon has given some likely suspects for PA.
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