Wikipedia
Sicariidae
Sicariidae is a family of six-eyed venomous spiders known for their necrotic bites. The members of this family are haplogyne, possessing unsclerotised genitals in females. The family consists of two genera, Loxosceles and Sicarius, and contains about 132 species. Well known spiders in this family include the brown recluse spider and the assassin spider.