About Rhodostrophia calabra (Petagna, 1786)
Rhodostrophia calabra is a moth species belonging to the family Geometridae, first described by Vincenzo Petagna in 1786. Its distribution ranges from the Iberian Peninsula, with a small isolated population in Morocco, eastward through southern France, the western and southern Alps, and Italy, to the eastern Adriatic coast and southern parts of the Balkan Peninsula. In central Europe, this species only occurs as an isolated population in central France and Rheinland-Pfalz. It is absent from all Mediterranean islands, including Corsica, Sardinia, the Balearic Islands, Sicily, and Crete. There is an additional isolated Balkan population in the border region of northern Bulgaria and Serbia. The species is also present on the eastern shores of the Black Sea in Turkey and in the Caucasus. Males of this species have a wingspan of 28 to 33 mm, while females have a wingspan of 28 to 35 mm. The moths produce one generation per year, which flies from May to June. The larvae feed on a variety of plant species, including multiple Fabaceae species, Cytisus scoparius, Genista (primarily Genista tinctoria), Dorycnium, Scabiosa, Rumex, Polygonum, Thymus, and Asperula.
