FW: [NatureNS] Mother of All Cocoons

Date: Tue, 22 May 2007 10:39:14 -0300
From: Jim Wolford <jimwolford@eastlink.ca>
To: NatureNS <naturens@chebucto.ns.ca>
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Jamie et al., in further thinking about Jamie's large cocoon, I have my
doubts about it possibly being a cecropia silk moth, just because it was
found so close to the ground and doesn't look quite right.  (And the
dimensions given should be in centimetres, not millimetres.)

I wonder if it could belong to one of the woolly bear caterpillars in the
tiger moth family, perhaps the salt-marsh caterpillar, which becomes the
acrea moth, Estigmene acrea?  These pupate close to the ground in open
areas, and the larval hairs are somehow incorporated into the hairy makeup
of the cocoon.  Other members of the tiger moth family, Arctiidae, would be
possibilities also.

P.S. The six of us who braved the elements to walk to Cape Split on May 19
found another type of large, dark-brown, very hairy woolly-bear caterpillar
crawling across the path.  From Wagner's new caterpillar field guide, it
might be the extremely variable (colour-wise) YELLOW BEAR or VIRGINIAN TIGER
MOTH, Spilosoma virginica?  Wagner shows 4 variants, and ours looked like
the lower left photo shown.

Cheers from Jim in Wolfville
----------
From: Jamie Simpson <jsimpson@win.eastlink.ca>
Reply-To: naturens@chebucto.ns.ca
Date: Sun, 20 May 2007 13:12:11 -0300
To: naturens <naturens@chebucto.ns.ca>
Subject: [NatureNS] Mother of All Cocoons

Still playing with web photos, let me know if this doesn't work.  Looking
for an ID on this humungous cocoon.

    http://picasaweb.google.com/desolatechair/Nature






      Nature
            Aug 23, 2005
            by james
            View Album

      Message from james:
      Can anyone identify this humungous cocoon? It's about 10mm long, 4mm
thick, weighs a few ounces, dark brownish, looks like a hairball and I think
still occupied, found on a low hanging blackberry bramble.

      Jamie
      If you are having problems viewing this email, copy and paste the
following into your browser:
      http://picasaweb.google.com/desolatechair/Nature
      





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