Menemerus namibicus

Menemerus namibicus is a small to medium-sized spider. The female has a dark brown carapace, covered in light grey hairs, that is between 2.7 and 3.1 millimetres (0.11 and 0.12 in) long and 2.0 and 2.3 millimetres (0.08 and 0.09 in) wide, with narrow white stripes formed of hairs on its edges. The eye field is black, with long brown bristles near its eyes. The spider has a low brown clypeus, or face, that also has a scattering of white hairs. It has brown mouthparts, including its chelicerae, labium and maxilae. The underside of its carapace, or sternum, is also brown. The abdomen is between 3.7 and 4.9 millimetres (0.15 and 0.19 in) in length and between 2.2 and 2.8 millimetres (0.09 and 0.11 in) in width. It is black on top and grey underneath. The spider has dark spinnerets and brown legs. The epigyne has a large depression and strongly sclerotized entrance bowls that lead to short insemination ducts and spherical spermathecae. The rims of the bowls appear as a straight line. The male has not been described. Spiders of the Menemerus genus are difficult to distinguish. Menemerus namibicus is most similar to Menemerus carlini. The copulatory organs help to identify the species, particularly the straight edges to the rearmost edge of the depression on the epigyne.

Menemerus spiders are found throughout Africa and Asia, and have been identified as far as Latin America. Menemerus namibicus is endemic to Namibia. The female holotype was found in 1986, although an earlier example found in 1985 was also identified as the same species. The spider has been found on the ground and in a mud dauber nest found in a farm building.