This is an authoritative checklist that aims (pretty much successfully) to list every species of spider ever recorded from California, along with synonyms, range (given in terms of counties) and citations of references in the taxonomic literature. It won't tell you how to identify any spiders, nor will it tell you anything beyond classification and range of species- but it will tell you the names and synonyms of species in a given county so you can look them up elsewhere.
Contributed by Chuck Entz on 27 November, 2005 - 5:42pm
Disclaimer: Dedicated naturalists volunteer their time and resources here to provide this service. We strive to provide accurate information, but we are mostly just amateurs attempting to make sense of a diverse natural world. If you need expert professional advice, contact your local extension office.