Large unidentified moth eggs on window

[Julie Seely]

	I guess it is a promethea.  My sister, who enjoys moth-watching,
gave me two promethea cocoons that she found while jogging near my
house; I attached them to a vine growing on the rail of our deck. 
Last night, when this moth appeared at the window (which is
actually a french door), I checked the two cocoons, and they seemed
not to have hatched.  What I didn't know was how hard it is to know
whether the cocoons have hatched or not.  I guess I expected that
if they had hatched, it would be obvious, but my sister tells me
that this is not the case.  
	At her home, one of her crecopia moths emerged from its cocoon
yesterday, so I went to see whether that might be what I saw last
night.  It is not.  I came home and looked at the two promethea
cocoons, and one of them apparently hatched yesterday, as the moth
was clinging to the vine just a few inches away from one of the
cocoons.  This moth resembled what I saw last night, though it was
a bit smaller than the one at the window.  It did have some
differences from the one pictured in the Audubon field guide, but
the underside looked much like what I saw yesterday.
	There were a total of about 30 eggs on the door, with about 15 of
them at toddler and dog level (both of which we have around here),
thus my interest in moving them.  Several sources list wild cherry
as food for promethea, and we have lots of that around here, so
I'll move the caterpillars if they do ever hatch.
	Thanks for the time frame.  I had no clue whether it would be two
days, two weeks, or two months.
	Julie