Robert Thompson / Tau emperor moth (Aglia tau) early instar caterpillar camouflaged against leaf. Falmenta, Cannobina Valley near Maggiore, Piedmont, Italy. May.

Jussi Murtosaari / Tau emperor (Aglia tau) resting on branch, Korpilahti, Jyvaskya, Keski-Suomi, Lansi- ja Sisa-Suomi / Central and Western Finland, Finland. June

Robert Thompson / Tau Emperor moth (Aglia tau) dark form, Vercores National Park, France, April.