Sinodendron rugosum
In 3 days ~10% in a week ~30%
Sinodendron rugosum is a species of the family Lucanidae, the stag beetles. It is commonly referred to as the rugose stag beetle, and is the only known member of the genus Sinodendron to occur in western North America. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Olympic National Park | 🇺🇸 United States | |
| 2 | Great Bear Rainforest | 🇨🇦 Canada |
Rare
Under 5% of wildlife watchers report a Rugose Stag Beetle sighting in Great Bear Rainforest on a given day, based on 13 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 159th most-seen of the 235 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.
March and June
In those months about 10% of wildlife watchers report a Rugose Stag Beetle in Great Bear Rainforest on a given day, against under 5% in April–May and July–February, the lowest months.
Between 2 and 5 pm
Across all the parks we cover, that three-hour window holds the most Rugose Stag Beetle sightings with a recorded time, and about 8 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 Rugose Stag Beetle sightings, Great Bear Rainforest ranks 2nd at under 5%. The best odds are in Olympic National Park (United States, about 10%).
Same order: Coleoptera
The closest relatives of the Rugose Stag Beetle that you can see in Great Bear Rainforest (order Coleoptera, Beetles) are Narrow-Collared Snail-Eating Beetle (about 20%), Asian Lady Beetle (about 10%) and Western Tiger Beetle (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Rugose Stag Beetle is recorded against all the insects logged in Great Bear Rainforest (13 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.
