Plexippus minor is a species of jumping spider in the genus Plexippus that lives in the United Arab Emirates. The male was first described by Wanda Wesołowska and Antonius van Harten in 2010 and the female in 2020. The spider is medium-sized with a cephalothorax between 3.1 and 3.8 mm (0.12 and 0.15 in) long and an abdomen between 3.3 and 4.1 mm (0.13 and 0.16 in) long. It has a shape and colouring typical of the genus. The male has an orange carapace while the female is brownish-fawn. The copulatory organs distinguish it from related species, particularly the male's shorter embolus and tibial apophysis and the female's wide pocket on its epigyne.

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