The new British Arachnological Society Atlas provides an accessible, continuously updated mapping tool for all verified UK spider, harvestmen and pseudoscorpion records, drawing on more than 1.6 million records. Users can navigate zoomable, customisable maps; view records by year or tetrad frequency; filter by vice‑county and access species accounts detailing ecology, status and designations. The Atlas also allows data downloads and it uniquely enables mapping across three datasets – the Spider Recording Scheme (SRS), iRecord and iNaturalist.

Published Live updates