The female also has a distinctive internal layout of its seminal ducts within its short and wide epigyne.

Langelurillus quadrimaculatus is a jumping spider that was first described by Wanda Wesołowska and Anthony Russell-Smith in 2011.

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

[4] In 2015, Wayne Maddison placed the genus in the subtribe Aelurillina, which also contained Aelurillus, Langona and Phlegra, in the tribe Aelurillini, within the subclade Saltafresia in the clade Salticoida.

[5] In 2016, Jerzy Prószyński placed the same genera in a group named Aelurillines based on the shape of the spiders' copulatory organs.

[7] It is brownish-grey with a distinctive pattern made of two pairs of rounded yellow patches.

The spider has orange to light brown legs and mottling on the sides of the abdomen.

It has narrow seminal ducts leading to multi-chambered heavily sclerotized receptacles.