Members of this genus resemble the comb-footed spiders, Theridiidae, due to their globular abdomen.

They spin no web but are slow moving, stalking or ambushing their prey.

They sometimes invade the web of their potential victim, vibrating the silk to mislead the owner.

An individual will attack a potential victim by biting one of its legs and injecting toxins.

The attacker then advances and starts to feed, sucking out the body fluids of its victim.