Cocoon with hair net - Climacia

Moved

… Charley Eiseman, 21 April, 2008 - 5:53am

Climacia

After some digging, I've confirmed that this cocoon belongs to the genus Climacia; in the cocoon of the other North American genus, Sisyra, the fibers of the 'net' around the cocoon are simply crisscrossed rather than forming a delicate hexagonal mesh.

… Charley Eiseman, 14 March, 2008 - 1:07am

Moved

Moved from Snout and Bark Beetles.

… Hannah Nendick-Mason, 18 December, 2007 - 8:40pm

Hairnet

Thanks Hannah.

… Charles Schurch Lewallen, 18 December, 2007 - 10:15pm

Spongilla fly!

I'm in the process of researching for a book I'm writing, Invertebrate Tracks & Sign, in which I hope to provide answers to as many of these sorts of mysteries as possible. I discovered your picture just a few days ago, and have been keeping it in mind as I peruse all the insect books I can get my hands on. I just now came across the following, from Frank E. Lutz's Field Book of Insects, 1935: "Sisyridae [spongilla fly] larvae go into the water for their food, freshwater sponges. It may surprise some readers to be told that we have freshwater sponges, but we do. The Sisyrid larva comes out of the water to spin the double-walled cocoon within which it pupates. The cocoon cover of Climacia dictyona is beautifully lace-like."
Sounded like a good match to me--especially since one of your other pictures showed the cocoon clearly next to water--and I just found this painting from 1901, which clinches it.
Spongilla flies, incidentally, are relatives of antlions and lacewings. Great find!

Charley Eiseman

… Charley Eiseman, 17 December, 2007 - 8:33pm

Amazing! Nice work, Charley!

- certainly looks like a very good match. I'll move this image

… Hannah Nendick-Mason, 18 December, 2007 - 8:38pm

Nice Work!

Nice Work! I have never herd of a Spongilla fly.

… Jonathan Burishkin, 17 December, 2007 - 8:39pm

I can't wait to find out what

I can't wait to find out what this is!! ^__^

… Jo Ann Poe-McGavin, 11 July, 2007 - 1:50am

cocoon

I have found 3 more and have collected one.

… Charles Schurch Lewallen, 10 July, 2007 - 5:06pm

Are all the "hair-nets" this perfect?

It seems a lot neater than the other weevil nets we've seen.

… Hannah Nendick-Mason, 10 July, 2007 - 7:10pm

Hairnet

Yes identical but somewhat smaller.
I am keeping it on my enclosed back porch in a plastic container with a screen top.
I noticed the neatness of these compared to the others also.

… Charles Schurch Lewallen, 10 July, 2007 - 7:24pm

We've had some similar but brown

hairnets posted to Hypera here. It will be interesting to see if these are related.

… john and jane balaban, 5 July, 2007 - 5:00pm

Cocoon

At last a clue! There are weevils all over the place.
I will keep my eye on it.

… Charles Schurch Lewallen, 5 July, 2007 - 5:11pm

Cocoon

I went back to check and someone has collected the cocoon.

… Charles Schurch Lewallen, 7 July, 2007 - 9:35pm

looks cool

!!
Keep an eye on it and see what it turns out to be.

… Jonathan Burishkin, 5 July, 2007 - 3:40pm

this is

totally awesome! Nice shot.

… Kevin H. Wirth, 5 July, 2007 - 1:51pm

Wow!

Very cool.

… Jay Barnes, 5 July, 2007 - 12:41pm

Wow!

Me too!

… Hannah Nendick-Mason, 5 July, 2007 - 12:41pm