A burnet moth, Zygaena exulans, with semi-transparent and somewhat greyish wings, found in alpine and boreal areas of Eurasia; also called Scotch burnet.
Origin
Late 19th century; earliest use found in William Forsell Kirby (1844–1912).
Definition of mountain burnet in US English:
mountain burnet
noun
A burnet moth, Zygaena exulans, with semi-transparent and somewhat greyish wings, found in alpine and boreal areas of Eurasia; also called Scotch burnet.
Origin
Late 19th century; earliest use found in William Forsell Kirby (1844–1912).