Evarcha praeclara

Species of spider

Evarcha praeclara is a species of jumping spider in the genus Evarcha that lives in Iran, Israel, South Sudan, Sudan, the United Arab Emirates and Yemen. The first examples of the spider were first identified by Eugène Simon in the early twentieth century in what is now Southern Sudan, but it was not until 2003 that the species was formally described by Jerzy Prószyński and Wanda Wesołowska. The exact nature of the species is disputed, with Prószyński stating that the examples found may be a group of species rather than a single one. Those that have been described are small, with a carapace that is between 2.1 and 2.4 mm long and an ovoid abdomen that measures between 1.7 and 3.2 mm long. The female is generally larger than the male. They have a brown or dark brown carapace, the female being plain while the male having a pattern of creamy white spots. The pattern on the top of the abdomen varies, with some spiders having lighter patches on a russet background and others being brown and white. They are all hairy. The spiders have generally brown mouthparts. The spiders' copulatory organs are distinctive and help distinguish the species from others in the genus. The female has an unusual trapezoid-shaped depression in its epigyne. The male has a broad embolus that has a tip that hugs a very distinctive protrusion, or apophysis.

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