food source for Pac NW "cecropia"

[David Wilbur]

Hi experts,
 I'm the proud parent of dozens of 4 hour old moth larva. Found laying
eggs in a concrete stairwell in a high rise, the parent looks like the
Cecropia of my eastcoast youth, but this is Seattle. I seem to remember
there are two native moths here that are in a similar genus the the
cecropia, but i dont know what they eat. This one had clear windows in
its wings.
 I'm currently making available plum, apple, blueberry, vine maple and
hawthorne, anybody know their natural food source?

 thanks!

David Wilbur
dowilbur at u.washington.edu