About Tarucus balkanica (Freyer, 1844)
Underside: This species has a tail and is white, with a prominent black streak running from the base of both wings. Markings are typically black, with continuous submarginal bands made up of connected black streaks. Upperside: Males always have discal spots and a spot at the cell-end on the forewing. The upperside is mostly dark blue with a narrow border. Females have brownish grey colouration with dark markings.