About Limenitis helmanni Lederer, 1853
Scientific name: Limenitis helmanni Lederer, 1853, described from Seitz. L. helmanni Led. (57b) has blackish brown ground colour, and its pattern is similar to the preceding species Limenitis camilla. However, the forewing cell bears a whitish basal streak, with a white acutely triangular spot located distally after it. The white spots of the central area are small and isolated, and the band of the hindwing that points toward the centre of the hindmargin is made up of separated spots. Small, whitish, elongate submarginal spots sometimes appear on the upper side of the hindwing. This species is distributed in Central Asia: Altai, eastern districts of Amurland; West and Central China; Korea. The subspecies pryeri Moore is on average larger, with widened white markings. Both wings have distinct white submarginal spots, the underside is more strongly marked, and the white spots on the hindwing are more prominent. pryeri is found in North-East China (Ning-po), Ussuri, Amurland, Corea, Japan. In subspecies duplicata Stgr. (male 61d, underside of female 57b, erroneously named doerriesi U. on the plate), the increase in the size of the white markings reaches its maximum. The band of the hindwing is continuous, and is double or threefold the original width. duplicata occurs in Amurland.