Kifwebe (striated society mask)
A striated wooden mask of the Songye *bwadi bwa kifwebe* society, used in ceremonies of social control; distinguished by incised parallel grooves, a central ridge, and contrasting white, red, and black pigments.
The kifwebe is the signature mask form of the bwadi bwa kifwebe, a male regulatory society among the Songye whose functions include the installation and removal of chiefs, the punishment of antisocial behaviour, and the containment of witchcraft. The mask's surface is entirely covered with incised parallel striations — grooves cut into the wood and filled or highlighted with white clay (pemba), red pigment (tukula), and black — generating a dramatic visual rhythm that scholars link symbolically to the alternation of day and night and of male and female principles.
Two formal registers exist within the tradition: the male mask (kilume), identifiable by its tall, pointed sagittal crest, aggressive forward-thrust jaw, and multi-directional striations incorporating red; and the female mask (kikashi), which is lower and rounder, predominantly white, with a flatter crest or none at all, and finer, more uniform striations. The kifwebe form also appears among the neighbouring Luba, with whom the Songye share a long border; Luba examples are generally softer in contour and less architecturally severe. Scholarly consensus attributes the earliest documented examples to the late nineteenth century, though the tradition is likely older.