Sac Spider

These are free living spiders often found in plants and in houses where they build a silk sac under which they hide or lay eggs. They are a cream-white to pale yellow or reddish-brown with distinct black or dark mouth pieces.

Full Name: Sac Spider (Cheiracanthium sp)

Other Names: Huis Sakspinnekoppe

Classification: MEDICALLY IMPORTANT

These are free living spiders often found in plants and in houses where they build a silk sac under which they hide or lay eggs. They are a cream-white to pale yellow or reddish-brown with distinct black or dark mouth pieces. Despite disputes, this species does possess a cytotoxic venom and bites can result in tissue damage and should be treated as an open wound. If the wound goes septic or necrotic it is best to get to a hospital and go on a course of Prophylactic antibiotics. There are no deaths from this species.

More info on their medical significance can be found here.

Map indicating the distribution of Sac spiders, within Southern Africa.
African Snakebite Institute