Lulengo group is found in Jomba area of the Virunga National park in DRC. Initially known as Rugabo, the group’s habituation started in 1985 with the Silverback Rugabo as the group head. Unfortunately Rugabo and 2 other females were brutally shot dead in 1994 in Jomba. Related to this incident, the juvenile Mvuyekure (current Silverback in Mapuwa family) was carried away by poachers with the aim of selling him off in Uganda; fortunately Mvuyekure was rescued and the poachers were arrested and imprisoned.
So following the death of Rugabo, his son Lulengo took over leadership of the group which was composed of 12 individuals at the time. A couple of interactions that saw to the transfer of some individuals from Lulengo to other groups was witnessed, for instance; in 1998 Lulengo interacted with Mapuwa group and a good number of his members crossed to Mapuwa while in 2014 another interaction was noted between Lulengo and Rugendo – this saw to the transfer of the juvénile Lulengo from Lulengo group to Rugendo group. Currently Lulengo group is led by the Silverback Lulengo and composed of 9 individuals including;1Silverback, 3 Adult females, 1 Sub-adult male, 1 juvenile and 3 babies.