The Bacchante, scientifically known as Lopinga achine, is a species of butterfly belonging to the family Nymphalidae, specifically within the subfamily Satyrinae and the genus Lopinga. These butterflies are characterized by their dull ochre to light brown color, with a subtle light yellow band on the upper side and a white band on the underside. They feature a line of large brown eyespots, encircled with a lighter color, which are white-centered on the underside. The forewings have five increasing-sized eyespots, while the hindwings have six of varying sizes, with the fourth and fifth being the largest and most visible on the upper side. The sixth eyespot, located at the anal angle, is uniquely double-centered with white.

The Bacchante is found from central Europe extending across northern and central Asia to Japan. In Europe, its range includes northern Spain, Italy, Romania, Bulgaria, the Baltic States, and southern Sweden and Finland. However, in metropolitan France, the Bacchante has experienced a significant decline. Since 1980, it has been recorded in only a few departments, ranging from Ariège to Lot, from Moselle to Drôme and Hautes-Alpes, and from Charente-Maritime to Yonne.

More Info: fr.wikipedia.org