Stheno Medusa was beheaded by Perseus, Stheno and Euryale tried to kill him, but failed due to his use of Hades' cap, becoming invisible. Stheno In Greek mythology, Stheno ( or ; Greek: Σθενώ, English translation: "forceful"), was the eldest of the Gorgons, vicious female monsters with brass hands, sharp fangs and "hair" made of living venomous snakes. The daughter of Phorcys and Ceto, Stheno was born in the caverns beneath Mount Olympus. She and her sister Euryale were both immortal, and the third sister, Medusa, was mortal. Of the three Gorgons, she was known to be the most independent and
Erebia euryale Erebia euryale Erebia euryale, the large ringlet, is a species of butterfly belonging to the family Nymphalidae. Subspecies include: This species is endemic to Europe. It can be found in southern Europe, in the Alps, Cantabrian, Pyrenees, Carpathians, Balkans, in northern Europe from Finland to the Urals and in Altai. "Erebia euryale" is an alpine species. It lives in spruce forest clearings, glades, slopes, subalpine meadows and damp meadows at an elevation of above sea level. "Erebia euryale" has a wingspan of 20–23 mm. These butterflies have a considerable geographic variation. Usually the upperside of the forewings is dark brown