Idaea muricata
Idaea muricata, the purple-bordered gold, is a moth of the family Geometridae. It was first described by Johann Siegfried Hufnagel in 1767 and is found in the Palearctic.
Image:Britishentomologyvolume6Plate523.jpg|thumb|left|200px|Illustration from John Curtis's British Entomology Volume 6
The species has a wingspan of 18–20 mm. The length of the forewings is 8–10 mm.
Distribution
It is found in western, central and eastern Europe. It occurs in the north to the south of the British Isles, southern Scandinavia and southern Finland. It is known in the western Spanish Pyrenees, Corsica, northern Italy, on the Balkan Peninsula up to Bulgaria and Albania as well as in the foothills of the Caucasus range in the south. To the east of the Urals it extends to the Kuriles and Japan as well as Korea and China .Image:Buckler W The larvæ of the British butterflies and moths PlateCXVI.jpg|thumb|130px|left|Fig 1,1a,1b,1c Larvae in various stages of growth