Pattern
Aggregated citizen-science observation data show a sharp late-August through October rise in indoor encounter reports for Eratigena, Tegenaria, and large Steatoda. The rise reverses sharply by mid-November.
References
- [1]SpiderSpotter / citizen-science arachnology programs - Royal Belgian Institute of Natural Sciences. Accessed June 2026.
Related in Data
- Spider bite statistics (United States)Aggregated public-health data on verified spider bites in the United States, drawn from the American Association of Poison Control Centers National Poison Data System (NPDS)..
- Spider species richness by stateDocumented species counts per US state aggregate from state extension publications and museum records.
- Medically significant spiders in the USOnly two genera in the United States produce envenomation of significant clinical consequence: Latrodectus (widows) and Loxosceles (recluses)..
- Verified Loxosceles range (United States)Established populations of native Loxosceles species in the United States, based on museum specimens and verified field collections compiled by Vetter and collaborators..
- Latrodectus species distribution (United States)Native Latrodectus species occupy distinct overlapping ranges across the United States: L.
- Poison control call trends (United States)AAPCC NPDS data show a steady ~3,500–4,500 annual calls coded for spider exposure across the past decade, with the majority classified as minor and fatalities essentially absent in recent reporting years..