It also has a very short forked embolus and a shovel-like projection, or apophysis, on the palpal tibia that distinguishes it from other related species.

Evarcha rotundibulbis is a species of jumping spider that was first described by Wanda Wesołowska and Beata Tomasiewicz in 2008.

[1] It was one of over 500 species identified by the Polish arachnologist Wesołowska during her career, making her one of the most prolific writers in the field.

[4] In 1976, Jerzy Prószyński placed the genus in the subfamily Pelleninae of the family Plexippoida, along with the genera Bianor and Pellenes.

[5] In Wayne Maddison's 2015 study of spider phylogenetic classification, the genus Evarcha was moved to the subtribe Plexippina.

[11] It is russet on top with a yellowish pattern consisting of arrow shaped patches and four spots that mark the centre to form an irregular and intermittent line from the front to the back.

The spider has mainly dark brown legs, but part of them, including the tarsi, yellow.

For example, compared to the related Evarcha chubbi, this species has a shorter embolus and more rounded palpal bulb.

[1] Evarcha spiders live across the world, although those found in North America may be accidental migrants.

[1] The holotype was found in near Hora Crater Lake, Debre Zeit, in 1987 at an altitude of 1,900 m (6,200 ft) above sea level.