It was first described in 2020 by Ivan Magalhaes, Mark Stockmann, Yuri Marusik and Sergei Zonstein.

Sahastata wesolowskae was first described by Ivan Magalhaes, Mark Stockmann, Yuri Marusik and Sergei Zonstein in 2020.

[3] The genus is a member of the subfamily Filistatinae in the family Filistatidae, which are known as crevice weaver spiders.

The genus is related to Kukulcania, differing in details like the design of the second tarsal claw.

[6] Sahastata wesolowskae is generally a medium to large spider,[4] but examples vary greatly in size.

[7] The abdomen is larger and more rounded than the male, and has a pattern reminiscent of a river delta.

The endogyne has spermathecae that have an area shaped like a boomerang, surrounded by a long portion that has a membrane.

[7] As well as being resistant to extremes of temperature, Sahastata wesolowskae thrives in areas which lack water.

The examples are generally found in flat sandy environments that have limited vegetation.

[3] The spider can be negatively impacted by oil spills, its preferred habitats being particularly vulnerable to pollution.