Cychrus tuberculatus
In 3 days ~20% in a week ~40%
Cychrus tuberculatus, the tuberculate rare snail-eating beetle, is a species of ground beetle in the subfamily Carabinae. It was described by Thaddeus William Harris in 1839. This species is found in British Columbia, Quebec, California, Oregon and Washington, where it inhabits coniferous forests, forest clearings and moraines.
Adults are brachypterous and nocturnal. They prey on snails. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Great Bear Rainforest | 🇨🇦 Canada | |
| 2 | Olympic National Park | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Cychrus tuberculatus sighting in Great Bear Rainforest on a given day, based on 19 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 83rd most-seen of the 235 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
June
In that month about 20% of wildlife watchers report a Cychrus tuberculatus in Great Bear Rainforest on a given day, against under 5% in August–September and November–April, the lowest months. That is one of Great Bear Rainforest's driest months, with about 150 mm of rain against 480 mm in November.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Cychrus tuberculatus sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 2 parks where we can rate Cychrus tuberculatus sightings, Great Bear Rainforest has the highest daily chance: about 10%. Next come Olympic National Park (United States, under 5%).
Same family: Carabidae
The closest relatives of the Cychrus tuberculatus that you can see in Great Bear Rainforest (family Carabidae, Ground Beetles) are Narrow-Collared Snail-Eating Beetle (about 20%), Western Tiger Beetle (about 10%) and Bronze Ground Beetle (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Cychrus tuberculatus is recorded against all the insects logged in Great Bear Rainforest (19 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.
