New Monkey Species Discovered in Congo Rainforest
Thursday, 2026/07/23246 words4 minutes1995 reads
Scientists have formally described a new African monkey species, Colobus congoensis, locally known as the Likweli, in research published in PLOS One on July 15, 2026. The discovery, documented by Hart et al., represents only the fifth new African monkey species described from a previously unknown wild population in the past 75 years.
The small, predominantly black colobus monkey exhibits distinctive morphological characteristics: pinkish-orange or orange-cream markings around its mouth and nose, elongated black facial hairs, large folded ears, an extended tail, and white markings near the anus. These features distinguish it from other colobus species in the region.
The species inhabits high, closed-canopy forests in and around Lomami National Park in east-central Democratic Republic of the Congo, confined to an area between the Lomami and Lilo rivers. Researchers estimate its range encompasses approximately 1,700 square kilometers, a relatively restricted distribution that raises conservation concerns.
The discovery process was protracted. Initial evidence consisted of a partly obscured photograph captured in 2008. Subsequently, researchers conducted systematic observations, recording 114 sightings between 2018 and 2022. Comprehensive genetic, anatomical, and acoustic analyses established that the animal constitutes a distinct Colobus species rather than a regional variant of known species.
While the name Likweli derives from local usage, indicating awareness among some communities, few surveyed populations recognized the animal, suggesting its rarity even within its limited range. Given its restricted geographical distribution, hunting pressure, and ongoing habitat conversion, researchers recommend an Endangered conservation assessment, though formal IUCN classification remains pending.
