Photinus californica
In 3 days ~10% in a week ~30%
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Redwood National Park | 🇺🇸 United States | |
| 2 | Olympic National Park | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a California Glowworm sighting in Olympic National Park on a given day, based on 10 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 113th most-seen of the 207 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
April, June and August
In those months about 10% of wildlife watchers report a California Glowworm in Olympic National Park on a given day, against under 5% in May, July and September–March, the lowest months. Those are among Olympic National Park's driest months, with about 100 mm of rain a month against 370 mm in November.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most California Glowworm sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 2
Of the 2 parks where we can rate California Glowworm sightings, Olympic National Park ranks 2nd at under 5%. The best odds are in Redwood National Park (United States, about 10%).
Same order: Coleoptera
The closest relatives of the California Glowworm that you can see in Olympic National Park (order Coleoptera, Beetles) are Narrow-Collared Snail-Eating Beetle (about 20%), White-Spotted Sawyer (about 10%) and Red Net-Winged Beetle (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the California Glowworm is recorded against all the insects logged in Olympic National Park (10 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
