10 to 12 cm
one flight annually, from December to April. In captivity usually emerging after the winter (April to June) . Pupal stage can take months
Quercus (especially white oaks) is best, alternatively also Fagus, Castanea
Suitable for newcomers, though a minimum of experience is required. Keep in spacious, well ventilated plastic containers, but move to a netted cage when they've reached the final instar. Watch out for condensation and do not give wet leaves. Make sure the food is clean and fresh. Tolerant of a wide range of temperatures as long as it does not become to cool (minimum living room temperature). The caterpillars are fast growing and ready to pupate within 4 to 6 weeks. The pupal stage can take several months.
avoid moist conditions