How it works
Pick the axis you can observe most reliably and follow it to a filtered list of species. Cross-reference two or three axes for a confident identification.
The identifier is conservative: it will not produce a single-species guess from one trait. It points to the small set of species consistent with the traits you observed.
References
- [1]Spider Myths - Burke Museum, University of Washington. Accessed June 2026.
Related in Tools
- State spider lookupBrowse the documented species, medically significant species, and peak activity season for any of the 50 US states..
- Side-by-side comparison toolCompare any two species in our comparison dataset trait by trait, with a bottom-line summary written for non-specialists..
- Bite symptom referenceA non-diagnostic reference describing the local and systemic symptom profile of verified widow and recluse envenomations, intended to help readers decide whether to seek medical evaluation.
- Spider terminology lookupSearch the site glossary for anatomical, behavioral, taxonomic, and clinical terms used throughout species and topic pages..