The Tasmanian species of Pararchaeidae and Holarchaeidae are revised and higher species-group relationships within the Pararchaeidae are examined. Three new species of Pararchaea Forster are described and the genitalia of P. corticola Hickman, P. ornata Hickman, P. saxicola Hickman and P. bryophila Hickman are redescribed, the receptacula of P. ornata, P. saxicola and P. bryophila for the first time. The male of P. ornata is newly described. With the addition of P. hickmani new species, P. lulu new species and P. robusta new species, the Tasmanian pararchaeid fauna is enlarged to include seven species. Holarchaea globosa (Hickman) is rediagnosed and the female genitalia and male are described and illustrated for the first time. Biological information is included where known.