Fool's Conecap
Conocybe filaris · Family Bolbitiaceae · Updated October 2026
40US records
11states
Novbusiest month
40 US records since 1936 (1 in the last 10 years)
Last seen May 18, 2021 (about 5 years ago) near Eureka, Humboldt County, CA, photographed by an iNaturalist user, with the ID agreed on by other iNaturalist users (research grade). Most US records come from Washington, California and West Virginia, and the busiest months are Nov, Oct and Sep. (Data as of October 26, 2026; records can lag by weeks.)
⚠ Never eat a wild mushroom based on this site. We show where fungi have been recorded, nothing more. We never say any mushroom is edible or safe, and you shouldn't decide that from any website, app or photo. Many deadly mushrooms look like harmless ones. If someone may have eaten a wild mushroom, call Poison Control at 1-800-222-1222 right away.
☠ Dangerous genus. The genus Conocybe includes species containing amatoxins. Mushrooms in this group have caused serious or fatal poisonings.
Lookalike warning. Many mushrooms, including deadly ones, closely resemble each other, and the only reliable identification comes from an expert looking at the actual specimen (often with spore prints or microscopy). Never use a name, photo or record count on this page to decide what something is.
When it's recorded
Records by month, all years. Busiest: Nov, Oct, Sep.
Where it's recorded
Top counties
- King County, WA (8) · latest Jun 22, 2000
- San Francisco County, CA (7) · latest Jul 28, 1982
- Humboldt County, CA (3) · latest May 18, 2021
- Tompkins County, NY (3) · latest Nov 9, 1982
- Thurston County, WA (2) · latest Nov 18, 1979
- Ramsey County, MN (1) · latest Sep 18, 2014
- Lake County, MN (1) · latest Jul 30, 1994
- Lake County, MT (1) · latest Jul 17, 1979
- San Mateo County, CA (1) · latest Aug 3, 1971
- Chaffee County, CO (1) · latest Jul 16, 1970
More on this species from GBIF.
Bring along
🍄
Regional mushroom field guideSee on Amazon🍄
Folding mushroom knife with brushSee on Amazon🍄
Wicker foraging basketSee on Amazon🍄
10x hand lens / loupeSee on Amazon🍄
Spore print paperSee on AmazonAs an Amazon Associate we earn from qualifying purchases.