Arge cyanocrocea, the bramble sawfly, is a species belonging to the family Argidae subfamily Arginae. As all sawflies, these species are related to wasps and not to flies, but lack the typical wasp waist. Its head and thorax are black, while the abdomen is yellowish orange. Arge cyanocrocea can be distinguished from the similar Arge pagana by its dark wing patches and gray apex of wings and by its reddish legs, with small black rings. These sawflies are present in most of Europe, in the Caucasus, in Asia Minor and in Japan.