The last observed of c. two-dozen larvae; and the only
collected and brought indoors (11-September) where it fed on
Northern Prickly Ash for only two more days before pupating.
late-instar larvae seen, appearing to be smaller,
this one apparently
skipped the larger last instar, yielding
this small "Spring form"
adult. Forewing length, only 47mm.
Room kept at 62°F. Light from
east & south windows.
D J Hoag, Grand Isle, VT