Canada (from Nova Scotia to Manitoba) and the (eastern half of the) USA
In between 3 and 5 cm
one to two flights annually (usually April/May and August/September, depending on local conditions). Pupae overwinter
Quercus preferred, alternatively also Castanea, Betula and Corylus
Not difficult, however offspring from the second flight slower growing and slightly more difficult probably because of the lesser quality of the food. Keep warm (minimum room temperature) and clean. Rear in spacious, well ventilated plastic containers. Avoid condensation. Fast growing. Ready to pupate within 4 to 5 weeks (depending on temperature and quality of the food, in autumn slower). Pupae overwinter in the fridge.
try to obtain eggs as early in the year as possibly