UI Connecticut cocoon

[Rob Vandermoor]

I have reared both Polyphemus and Cecropia. Cecropia cocoons in my
experience are more tapered at the emergence end and Polyphemus cocoons are
generally like an overly rounded chicken egg as this picture tends to show.
That said Polyphemus cocoons tend to fall to the ground as the leaves fall,
were as Cecropia cocoons generally remain affixed to the branch. My money
would be on Polyphemus.

   Robert Vandermoor.

----- Original Message -----
From: "Doug Yanega" <dyanega at pop.ucr.edu>
To: <LEPS-L at lists.yale.edu>
Sent: Sunday, March 09, 2003 2:33 PM
Subject: Re: UI Connecticut cocoon


> >Hi folks - I came across a cocoon attached to a spirea twig.  There is a
> >picture of it posted at http://booksandnature.homestead.com/Misc.html.
> >Anyone know what it is?
>
> I'd wager on it being a cecropia, though it might be a Polyphemus.
> --
>
> Doug Yanega        Dept. of Entomology         Entomology Research Museum
> Univ. of California - Riverside, Riverside, CA 92521
> phone: (909) 787-4315 (standard disclaimer: opinions are mine, not UCR's)
>             http://entmuseum9.ucr.edu/staff/yanega.html
>    "There are some enterprises in which a careful disorderliness
>          is the true method" - Herman Melville, Moby Dick, Chap. 82
>
>
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