Pellenes vanharteni is a species of jumping spider in the genus Pellenes that lives on the islands of Cape Verde, where it is one of the most abundant spiders. Named after the entomologist Antonius van Harten, the species is a very small spider with a dark brown carapace that is typically 1.3 mm (0.05 in) long and a yellowish-white abdomen typically 1.2 mm (0.05 in) long. There is a distinctive pattern on the abdomen that consists of two greyish-brown patches around a serrated central stripe that helps to distinguish the species from others in the genus. The underside of the spider is lighter than the top, the sternum being yellow. White hairs can be seen on the spider's clypeus. Its front legs are black and longer than the rest, which are also lighter. Although the female has not been described, the male looks as if it has a double narrow spike-like embolus.

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