The chelicerae, clypeus, legs, pedipalps and spinnerets are generally yellow, although they may be yellow-brown on the male.

The spider is distinguished from others in the area by the lack of a pocket in the epigyne of the female and the forked appendage, with different length tines, on the palpal bulb of the male.

[3] The species is named after Wanda Wesołowska, the Polish arachnologist, in celebration of her 70th birthday.

The male has a yellow-brown carapace that measures 2.95 mm (0.116 in) in length and 2.05 mm (0.081 in) in width and is covered in scales forming a pattern of two white stripes along the top and yellow bands on the side.

It has a long retrolateral tibial apophysis, which is distinctively fork-shaped and distinguishes the species from others in the genus.

The spider is similar to Stenaelurillus furcatus, which also has a long fork-like projection but the tines in this species are different lengths.

The spider is unusual amongst Stenaelurillus species found in the region in that it lacks an epigynal pocket.