Stamps of Soviet Union

Русский: Почтовая марка СССР. 1987. Красная книга СССР. Махаон
Date 1987
Source
English: This image was scanned or photoreproduced by Andrew Butko. Contact infоrmation - e-mail: abutko@gmail.com. Other scans see here.
Русский: Это изображение было отсканировано или перефотографировано Андреем Бутко. Контактная информация - e-mail: abutko@gmail.com. Другие отсканированые предметы см. здесь.
Author Post of Soviet Union
Source: https://commons.wikimedia.org/wiki/File:1987_CPA_5800.jpg

The Old World swallowtail (Papilio machaon) is a butterfly of the family Papilionidae. The butterfly is also known as the common yellow swallowtail or simply the swallowtail (a common name applied to all members of the family, but this species is the 'original', first to go by the name). It is the type species of the genus Papilio.