Stenaelurillus glaber

Stenaelurillus glaber was first described by Wanda Wesołowska and Anthony Russell-Smith in 2011.[1] It is one of over 500 species identified by the Polish arachnologist Wesołowska.[2] The genus Stenaelurillus was first raised by Eugène Simon in 1885.[3] The name relates to the genus name Aelurillus, which itself derives from the Greek word for cat, with the addition of a Greek stem meaning narrow.[4] In 2017, it was grouped with nine other genera of jumping spiders under the name Aelurillines.[5] It has been placed in the subtribe Aelurillina in the tribe Aelurillini in the clade Saltafresia.[6] The species name recalls the lack of any hairs or brushes on the carapace.[7]

Only the male has been described.[1] The spider is small, with a cephalothorax that measures 2.58 mm (0.102 in) in length and 1.8 mm (0.071 in) in width. It has a dark brown pear-shaped carapace with four stripes, two more pronounced on the main body and two others on the edges.[7] The abdomen is dark brown and has three large white spots on its rear half.[8] It ranges from 2.05 and 2.4 mm (0.081 and 0.094 in) long and is 1.4 mm (0.055 in) wide.[7][9] The eye field is black and has bristles, some of which are white. while the legs are yellow.[8] The pedipalps are also yellow, but have numerous bristles on them, unlike Stenaelurillus pilosus.[10] The palpal bulb is similar to Stenaelurillus hirsutus, Stenaelurillus pilosus and Stenaelurillus striolatus.[11][12] It can be distinguished from these species by the fact that the clypeus is yellow with white hairs.[13] .

The species was first identified in Nigeria. The holotype for the species was found in Kwara State in 1973. It was found in cultivated savanna.[9] It was subsequently observed near Aburi, Ghana, and Pakwach, Uganda.[14] A further example was identified, a specimen collected in 1975, from Mount Niangbo in Ivory Coast.[15] The distribution now includes all four countries.[1]