Ceruchus piceus
In 3 days ~10% in a week ~20%
Ceruchus piceus is a species of stag beetle in the family Lucanidae. It is found in North America. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Shenandoah National Park | 🇺🇸 United States |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Montreal | 🇨🇦 Canada | |
| 2 | Toronto | 🇨🇦 Canada | |
| 3 | Washington | 🇺🇸 United States | |
| 4 | New York City | 🇺🇸 United States | |
| 5 | Chicago | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Red-Rot Decay Stag Beetle sighting in Montreal on a given day, based on 13 verified sightings from GBIF citizen-science data. It is the 524th most-seen of the 926 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Red-Rot Decay Stag Beetle in Montreal on a given day, so our monthly data shows no clear season.
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Red-Rot Decay Stag Beetle sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.
Yes
Of the 5 cities where we can rate Red-Rot Decay Stag Beetle sightings, Montreal has the highest daily chance: under 5%. Next come Toronto (Canada, under 5%) and Washington (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Red-Rot Decay Stag Beetle is recorded against all the insects logged in Montreal (13 verified sightings), 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.
