Holotype: Forewing length: 37 mm. Wingspan: 65.5 mm. The upperside ground colour is dark chestnut-red, but the apical half of the wing is black (covering just over half of the wing, as a triangle from the apex to the discoidal cell along the costa and the tornus. There are two rows of bluish-white spots along the outer margin in the black area from space 1b to the apex. Two well defined white rectangular spots are found in spaces 5 and 6 (respectively). The forewing apical black area has an intense iridescent blue reflection, best visible in direct sun or in strong artificial illumination. The hindwing is dominated by the chestnut-red ground colour, which is slightly darker in the marginal area, with a dark undulating sub-marginal line. The underside is light hazel-brown with the shades of the white spots in spaces 5 and 6 on the upperside showing through, and two blackish spots in spaces 4 and 5, as well as a small ill-defined black dot in space 8 near the apex. The usual “Bebearia” pattern is also visible as a figure-of-eight spot and other amoeboid patches in the discoidal cell and irregular lines in the median and post-median area of both wings, as well as a tiny black ring in the hindwing cell. The body is strong and bold, black on the underside with a whitish band on the abdomen and a couple of whitish lateral spots. The body colour is light hazel-brown on the upperside, the same tone as the wings. The antennae are long (21 mm), with a black shaft and three-fourth of the club is light hazel-brown.

Female: Forewing length: 49 mm. Wingspan: 84 mm. Antennal length: 23.5 mm. The appearance of the female is very similar to that of the male, although the size difference between the sexes is
substantial. The white spotting in the outer half of the forewing is conspicuous and the spots form a narrow, but obvious white band in the spaces between veins 4 and 7. The outer margin of the forewing is concave, making the forewing apex rather acute. The hindwing is evenly rounded from the apex to the tornus. There are two, rather illdefined whitish spots in the hindwing apex, both missing in the male. The underside colour and pattern is identical to that of the male.

Identification: B. wojtusiaki, at first impression, resembles a slightly darker and well spotted B. plistonax. However, it is instead a morphologically intermediate species between B. plistonax and B. arcadius, as the red colour on the upperside is always slightly darker than on B. plistonax and similarly dark to, or only slightly lighter than B. arcadius. The bluish-white spotting on the forewing of B. wojtusiaki is always more bluish than B. plistonax, as the blue iridescent sheen, similarly to B. arcadius, is more extensive on B. wojtusiaki, and is not restricted just to the close environment of the whitish spots, which is usually the case in B. plistonax (apart from certain specimens from Zambia). The bluish-white spotting is also more extensive in B. wojtusiaki which always has two spots in the space between veins 1 and 2, three between 3 and 4, also three between 4 and 5, the inner ones being rather ill-defined. In females there is always a bluish-white, rather undefined spot at the end of the discoidal cell, visible as bluish-white shading on the males. B. plistonax in most cases have a single whitish spot between veins 1 and 2, a very ill-defined bluish-white spot can occur in space between veins 1 and 2 but it was found only on females from Central Africa, Uganda and Tanzania populations, and only a single male was found with an additional ill-defined bluish-white spot in the spaces between veins 1 and 2 in the series of examined specimens in the ABRI collection from Northern Zambia (among 17 males). The structure of the male genitalia is very similar in all three species, and dissection of multiple specimens from different localities revealed high individual variation and overlap of multiple features between them. We therefore consider male genitalia as lacking diagnostic value in discerning the three species. However, we found morphologically small, but significant differences in the structure of female genitalia with regards to the shape of ductus bursae, which is straight and considerably thinner in B. wojtusiaki, not gently bent before opening into corpus bursae as in B. plistonax and B. arcadius. The bursa copulatrix is sphere-shaped, while it is more oval or pear-shaped in the related species.