Its epigyne has two pockets that stretch down the middle of its length and copulatory openings that are close together.

Hyllus ignotus is a jumping spider that was first described by Wanda Wesołowska and Anthony Russell-Smith in 2022.

[3] It was allocated to the genus Hyllus, first raised by Carl Ludwig Koch in 1846.

[4] Molecular analysis confirms that they are related but the precise relationship between the genera is unknown and species from one genus are sometimes misidentified as members of the other.

[5][6] The genus is found throughout Africa and contains one of the largest jumping spiders discovered.

[7] In Wayne Maddison's 2015 study of spider phylogenetic classification, the genus Hyllus was placed in the clade Saltafresia.