It has a dark brown carapace that is between 2.6 and 2.8 mm (0.10 and 0.11 in) and has two white stripes on the back and a white abdomen that is between 2.6 and 3.0 mm (0.10 and 0.12 in) long and a large brown stripe that takes up one third of its back.
The male has a distinctive membrane and appendage at the base of its embolus on the palpal bulb which distinguishes its from other species in the genus.
[3] In Wayne Maddison's 2015 study of spider phylogenetic classification, the genus Mogrus was placed in the clade Simonida within the subfamily Saltafresia.
It is elongated and has a pattern on its back with the central third a brown stripe, the remainder white.
The palpal bulb has a single upright pointed tibial apophysis and long thin embolus.
This appendage helps distinguish the species from the otherwise similar Mogrus antoninus, which lives in Central Asia.
[9] It is also similar to Mogrus mathisi, with the wider palpal bulb and extension on the tegulum being the most obvious features that differentiate the other species as well as the lack of the embolus' membrane and appendage.