For what primary functions is silk utilized by wolf spiders?

Creating protective egg sacs or serving as a safety dragline while running

In stark contrast to web-building spiders for whom silk is a primary tool for food acquisition, the wolf spider utilizes silk for secondary, protective, or structural purposes. Their main uses for silk involve creating the protective, silken wrapping or sac that houses their eggs until they hatch. Additionally, when they are actively running or hunting across surfaces, they often trail a strand of silk behind them, serving as a safety dragline. This dragline allows them to quickly retrieve themselves or simply provide a guide rope during rapid movements, but it is not deployed as a primary mechanism for catching their meals.