The Holarchaeidae are a spider family with only two described species in one genus. They are only up to 1.5mm in size and shiny black to beige in color. Together with the Uloboridae and the Mesothelae, they're the only spiders known to lack venom glands. Distribution Holarchaeid spiders are known only from the forests of Tasmania and New Zealand, where they live in microhabitats with consistently high humidity. Species Holarchaea Forster, 1955 Holarchaea globosa (Hickman, 1981) (Tasmania) Hol… (More on Holarchaeidae)