Cocoon and pupa of Gastropacha populifolia:

E.Siberia, 10 km E Irkutsk, on Populus tremula, 13-VI-2001, leg. E.Berlov The cocoon length is 55 mm.

E.Siberia, 10 km E Irkutsk, ex cocoon (Cocoon: 13-VI-2001 on Populus tremula, Imago: 23-VI-2001), leg. E.Berlov The pupa length is 43 mm.