Mexcala fizi is a jumping spider that was first described by the Polish arachnologist Wanda Wesołowska in 2009, one of over 500 species she identified during her career.

[2][3] The genus was a member of the tribe Heliophaninae alongside Pseudicius and Cosmophasis, which was absorbed into Chrysillini by Wayne Maddison in 2015.

[14] The chelicerae have short thick spines on them which may be used for digging holes to act as underground hiding places.

[15] It uses visual displays during courtship and transmits vibratory signals through silk to communicate to other spiders.

[15] Mexcala fizi was first discovered in Sud-Kivu District in Democratic Republic of the Congo at an altitude of 1,320 m (4,330 ft) above sea level, the holotype being collected in 1958.

The first example found in Tanzania was seen in 1957 near Seronera in Serengeti National Park at an altitude of 1,500 m (4,900 ft) above sea level.