Collecting wild Polyphemus cocoons

[Dan Chaffee]

Hi,

Although polyphemus is very common here in western
Missouri, I only seem to be finding the majority of
the live cocoons on wild dogwood and occassionally on birch.
I know most cocoons of this species fall to the ground
and are therefore tougher to locate, but can anyone suggest
a wild foodplant that the cocoons are more commonly attached
to?

Thanks, 
Dan Chaffee
Kansas City, Mo.
USA

 
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