About Pseudoterpna coronillaria (Hübner)
Pseudoterpna coronillaria, commonly called the Jersey emerald or gorse emerald, is a moth species belonging to the family Geometridae. This species was first formally described by Jacob Hübner in 1796. It can be found across Spain, Portugal, the Pyrenees, western and southern France, Corsica, Sardinia, Sicily, Italy, Samos, Rhodes, Turkey, Israel, Lebanon, northern Jordan, and North Africa. It has never been recorded from mainland Great Britain, but it does occur on the island of Jersey. On Jersey, it was previously misidentified as a form of the grass emerald, and was only correctly recognized in 2001. The wingspan of this moth ranges from 36 to 40 millimetres, equal to 1.4 to 1.6 inches. In western Europe, adult moths are active in flight during the months of June and July. The larvae of Pseudoterpna coronillaria feed on Genista tinctoria, various Ulex species, and broom.
