[3] In 2000, Wanda Wesołowska and Anthony Russell-Smith described both male and female examples of a new species that they named Langelurillus difficilis.

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

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

It is dark brown and high, covered in golden shiny hairs, with a short black eye field.

The carapace is similar in shape to the male, but is brown with a pattern of orange patches.

The abdomen is more rounded and dumpy and has a covering of short dense brown hairs.

The spider has an oval epigyne with two depressions towards the back and a pocket near the epigastric furrow.

[13] The spider is very similar to the related Langelurillus manifestus, but can be identified by its smaller size, the fact that it is darker, and its narrower palpal bulb.

[15] The male is similar to Langelurillus orbicularis, but can be distinguished by the shape of the retrolateral tibial apophysis.

[16] It can also be confused with Langona magna but is smaller and lacks the spines on the feet of the other species.