Ocypus olens
In 3 days ~20% in a week ~40%
The devil's coach-horse beetle (Ocypus olens) is a species of beetle belonging to the large family of the rove beetles (Staphylinidae). It was originally included in the genus Staphylinus in 1764, and some authors and biologists still use this classification.
The Latin species name olens, meaning "smelling", refers to the two white stinking glands on the abdomen. This beetle has been associated with the Devil since the Middle Ages, hence its common name, which has been used at least since 1840. Other names include devil's footman, devil's coachman, and devil's steed. It is sometimes also known as the cock-tail beetle for its habit of raising its abdomen.
One dictionary suggested that the name developed in parallelism with ladybird and its Norse cognates. In Irish, the beetle is called dearga-daol or darbh-daol. The Irish also called it "the coffin cutter." British folklore has it that a beetle has eaten the core of Eve's apple, and that a person who crushes such a beetle is forgiven seven sins. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Snowdonia National Park | 🇬🇧 United Kingdom | |
| 2 | Cévennes National Park | 🇫🇷 France | |
| 3 | Pyrénées National Park | 🇫🇷 France | |
| 4 | Wadden Sea National Park | 🇩🇪 Germany | |
| 5 | Sierra de Guadarrama National Park | 🇪🇸 Spain |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Portland | 🇺🇸 United States | |
| 2 | Paris | 🇫🇷 France | |
| 3 | London | 🇬🇧 United Kingdom | |
| 4 | Madrid | 🇪🇸 Spain | |
| 5 | Berlin | 🇩🇪 Germany | |
| 6 | Copenhagen | 🇩🇰 Denmark | |
| 7 | Lyon | 🇫🇷 France | |
| 8 | Milan | 🇮🇹 Italy | |
| 9 | Birmingham | 🇬🇧 United Kingdom | |
| 10 | Seattle | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Devil's Coach Horse Beetle sighting in Seattle on a given day, based on 81 verified sightings from GBIF citizen-science data. It is the 71st most-seen of the 428 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.
September
In that month about 20% of wildlife watchers report a Devil's Coach Horse Beetle in Seattle on a given day, against under 5% in November to July, the lowest months. That is one of Seattle's driest months, with about 60 mm of rain against 190 mm in November.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Devil's Coach Horse 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.
Among the best
Of the 22 cities where we can rate Devil's Coach Horse Beetle sightings, Seattle ranks 10th at about 10%, level with the leaders once rounded. The best odds are in Portland (United States, about 10%), Paris (France, about 10%) and London (United Kingdom, about 10%).
GBIF citizen-science records
It is estimated from how often the Devil's Coach Horse Beetle is recorded against all the insects logged in Seattle (81 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.
