Abstract
The paper lists records of adult and immature stages of terrestrial arthropods so far collected from the Poor Knights Islands, to the east of the North Auckland Peninsula. Most collections are from Tawhiti Rahi; 24 orders and 273 species are recorded for the first time. Five new combinations are made within the Coleoptera. A biogeographic analysis indicates that 16% of the species recorded are either probably or possibly endemic, owing to the lack of a mainland link in the last glaciation. Ecological data are summarised, certain and possible plant associations are recorded, and suggestions for further research are made.