Mexcala angolensis

Like all Mexcala spiders, the species is slender and medium-sized. The male is covered with short brown hairs. a brownish carapace that is typically 3.4 mm (0.13 in) long. It has a short eye field. The chelicerae have a single tooth. The abdomen is typically 3.0 mm (0.12 in) long and light brown with two lighter patches to the front and an indistinct dark streak down the middle. The underside has sets of yellowish dots forming four lines. The long thin legs are brown with black lines. The pedipalps are brown with white scales on the tibia and cymbium and a rounded palpal bulb. There is a single tibial apophysis, or spike, with small teeth on its tip. This tip, along with the lack of a bump on the palpal bulb, help distinguish the species from others in the genus. The embolus is fixed to the tegulum. The female has not been described. Like many jumping spiders, Wesołowska and Tamás Szűts noted that Mexcala spiders mimic ants. Some are particularly similar to members of the Camponotus genus. However, they mainly resemble Mutillidae, species of wasp that have ant-like characteristics. The species particularly resembles the female, which is wingless, in its body proportions.

Mexcala spiders can be found across Africa and the Arabian peninsula. Mexcala angolensis is endemic to Angola in Southern Africa. The holotype was found near Muconda in 1949.

The spider is typical of the genus. It lives amongst various different species of ant and ant-like insect that it mimics, and preys upon. Like other jumping spiders, it is a mainly diurnal hunter that uses its good eyesight to spot its prey. It attacks from the front and captures its prey behind the head. The chelicerae have short thick spines on them that may be used for digging holes to act as underground hiding places. It uses visual displays during courtship and transmits vibratory signals through silk to communicate to other spiders.