Piliocolobus langi (J. A. Allen, 1925)

Russell A. Mittermeier, Anthony B. Rylands & Don E. Wilson, 2013, Cercopithecidae, Handbook of the Mammals of the World – Volume 3 Primates, Barcelona: Lynx Edicions, pp. 550-755 : 710

99.

Lang’s Red Colobus

Piliocolobus langi

French: Colobe de Lang / German: Lualaba-Stummelaffe / Spanish: Colobo rojo del Lualaba

Taxonomy. Colobus langi Allen, 1925 ,

Democratic Republic of Congo, Risimu, between Stanleyville (= Kisangani) and Bafwaboli.

Modern taxonomic arrangements of the colobus monkeys either divide the red colobus and the Olive Colobus into two genera, Piliocolobus and Procolobus , respectively, or consider them to belong to one genus, Procolobus , with two subgenera ( Procolobus for the Olive Colobus and Piliocolobus for the red colobus). We follow here C. P. Groves in his publications of 2001 and 2007 in using two genera. Monotypic.

Distribution. NE DR Congo, restricted to the “cul-de-sac” between the Lualaba and Aruwimi-Ituri rivers.

Descriptive notes. Head-body ¢.50 cm (males) and 48-5 cm (females), tail 66-5 cm (males) and 44-66.5 cm (females); weight ¢.9 kg (males) and c.7-7 kg (females). Head, throat, chest, arms, and shoulders of Lang’s Red Colobus are reddish, contrasting with the sepia-black tone of hindparts and belly. Individuals resembling this description occur throughout the distribution of the “elliot” hybrid swarm (described under the Semliki Red Colobus , P. semlikiensis ). The mtDNA affinities of Lang’s Red Colobus are, as one would expect, with its neighbors in north-eastern DR Congo and with P. tephrosceles .

Habitat. Lowland rainforest.

Food and Feeding. Diets include young leaves and mature leaves,fruit, flowers, buds, and possibly seeds.

Breeding. There is no information available for this species.

Activity patterns. Lang’s Red Colobus is diurnal and arboreal.

Movements, Home range and Social organization. There is no information available for this species in the wild.

Status and Conservation. CITES Appendix II. Lang’s Red Colobus has not been assessed on The IUCN Red Lust. It is not found in any protected areas, and no information is available concerning its conservation status.

Bibliography. Groves (2001, 2007b), Grubb et al. (2003), Ting (2008).

Figures

Distribution. NE DR Congo, restricted to the “cul-de-sac” between the Lualaba and Aruwimi-Ituri rivers.