The Faroese Post has issued a stamp set dedicated to the numerous butterflies inhabiting the Islands. To date, 154 different species of butterflies have been registered in the Faroe Islands. Most of them do not breed here, but arrive with the help of warm currents of air from the south, sometimes all the way from Southern Europe and Africa.
None of the species depicted on the stamps are native to the Faroes, but can be seen here from time to time. The painted lady, Vanessa cardui, and the peacock butterfly, Inachis io, belong to the brush-footed family, Nymphalidae, and fly during the day. The hawk-moth, Agrius convolvuli, and the death's-head hawk-moth, Acherontia atropos, belong to the Sphingidae family of moths and fly from twilight until late at night.