Pellenes striolatus is a species of jumping spider that was first described by Wanda Wesołowska and Antonius van Harten in 2002.

[2] The species is named after a Latin word that can be translated "thinly streaked" and relates to the pattern on its abdomen.

[7] Phylogenetic analysis of molecular data demonstrates that the genus is most closely related to Habronattus and Havaika.

[3] The male has a carapace, the hard upper surface of the cephalothorax, that is lower at the front and higher at the back.

The spider's face, or clypeus, is low and brownish, with a few brown hairs protruding from it forwards.

[11] The spider is most easily distinguished from other members of the genus, particularly the otherwise closely related Pellenes geniculatus, by the design of its abdomen.

[3] The top is black with a white pattern consisting of a single brown stripe that goes down the middle from the front to back with two smaller and fainter diagonal lines that emanate from each of the sides in the back-middle-half and two vague patches nearer to the front.

[12] There are short black hairs across the surface of the abdomen, occasionally interrupted by long bristles, and a few white scales on the very front.

The palpal tibia is smooth and has a single large slightly-curved protrusion, or tibial apophysis.

It has a shallow pocket in the middle and two copulatory openings that lead to large spermathecae, or receptacles.

[12] Pellenes spiders can be found across the Afrotropical, Holarctic and Indomalayan realms, but are particularly common around the Mediterranean Sea and in Central Asia.