This is more prominent in adult males compared to females and is present once the spider has matured past early instars.

Amongst the females in the colony, roughly 40% will engage in mating, while the other 60% will remain virgins and participate in brood care.

Spiderlings mount the female's dorsal region and consume her bodily fluids until she passes in an act of matriphagy.

These digestive enzymes break down the prey into a liquid for other spiders to share, or for females to regurgitate to spiderlings.

[3] Nests are large web structures composed of a compact combination of silk and nearby branch or desert brush.

These nests are built in spiny bush twigs or trees close to the ground at a height of 0.5 to 1.5 meters high.

When new females create a new colony, webs will begin as monodomous, where there is a single isolated nest.

The nest does not provide protection from bushfire or general dehydrating conditions, but does provide protection from other environmental dangers (wind, hail, sun-related radiation) [10] Within the large, webbed nest, several prey-capture regions are interspersed within housing tunnels.

[13] Namibian female spiders have been found to mature from January to the middle of the summer, produce eggs from February to March, and live until April to June to take care of the brood and later be consumed by the kin.

[10] If a female chooses to leave and create a new colony, this was found to occur from January to March.

Spiders will tend to live in the same colony they were born in, leading to a group that is made of several generations of related individuals.

If a group was made of spiders that were morphologically diverse (varying prosoma width), they also mounted a faster attack.

The arboreal pugnacious ant (Anoplolespsis steingroeveri) and Stegodyphus dumicola inhabit the same trees and are commonly found together.

When these ants attack, they gather in hundreds and thousands to invade for consecutive days, up to multiple times per year.

When under attack, the spiders will either weave more cribellate silk sheets to stop a swarm or gather egg cocoons and abandon the current nest.

[8] Other predators of Stegodyphus dumicola include several other spider species (Clubionidae, Gnaphosidae, Nephila senegalensis, Salticidae, Heteropodidae, Thomisidae).

S. dumicola was found to have a passive relationship with Clubionidae, Thomisidae, and Salticidae, attracted to Nephila senegalensis, and completely defenseless to Heteropodidae and Gnaphosidae .

[8] Sexually mature female Stegodyphus dumicola have been witnessed to balloon as a method of dispersion to reproduce.

Females will eject from ten to hundreds of strings in a triangle shape (approximately one meter large, length and width) to gain liftoff.