Evarcha striolata

The female is generally lighter and has indistinct lines formed of dots on both the top and bottom of its abdomen.

It can be distinguished from other species in the genus by its copulatory organs, particularly the shape of the male's palpal bulb and the female spermathecae (receptacles at the end of its insemination ducts).

Evarcha striolata is a species of jumping spider, a member of the family Salticidae, that was first described by the arachnologists Wanda Wesołowska and Charles Haddad in 2009.

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

[7] Plexippina is a member of the tribe Plexippini, which was listed in the subclade Simonida in the clade Saltafresia by Maddison.

[8] In 2016, Jerzy Prószyński added the genus to a group of genera named Evarchines along with Hasarinella and Nigorella based on similarities in the spiders' copulatory organs.

[9] According to Maddison, Melissa Bodner and Karen Needham, the genus is closely related to the genera Hyllus and Plexippus.

[13] This designation is not widely accepted and the species remains in the Evarcha genus in the World Spider Catalog.

The spider has yellowish legs that have a covering of short brown hairs and a relatively large number of spines.

[13] Evarcha striolata has male copulatory organs that include a round hemispherical tegulum that has a long thin embolus attached to the side.

The embolus follows the curve of the palpal bulb until it reaches the top, at which point it projects towards the cymbium that surrounds the tegulum.

At the base of the tegulum is palpal tibia, which has a large spike called a tibial apophysis projecting from it.

The two copulatory openings lead to very wide insemination ducts that are slightly sclerotized and form a loop on their way to the spermathecae or receptacles.

A study of the related Evarcha arcuata found that the spider will rest hanging from a silken thread.

Lateral view of a spider with a striped abdomen
Male Evarcha striolata