Scaphinotus angusticollis
In 3 days ~20% in a week ~30%
Scaphinotus angusticollis, the narrow-collared snail-eating beetle, is a species of ground beetle in the family Carabidae. It is found in North America (British Columbia, Quebec, Alaska, California, Oregon, Washington), where it inhabits in coniferous, mixed and deciduous and cultivated fields.
Adults are brachypterous, gregarious and nocturnal. It has been seen to come in various colors, like dark black and deep red. These color morphs appear to be regional. They have been seen to prey on snails, slugs, earthworms, and spiders. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Pacific Rim National Park Reserve | 🇨🇦 Canada | |
| 2 | Redwood National Park | 🇺🇸 United States | |
| 3 | Olympic National Park | 🇺🇸 United States | |
| 4 | Great Bear Rainforest | 🇨🇦 Canada |
With luck
About 10% of wildlife watchers report a Narrow-Collared Snail-Eating Beetle sighting in Portland on a given day, based on 47 verified sightings from GBIF citizen-science data. It is the 128th most-seen of the 507 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.
April–May and September–December
In those months about 10% of wildlife watchers report a Narrow-Collared Snail-Eating Beetle in Portland on a given day, against under 5% in January–March and June–August, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Narrow-Collared Snail-Eating 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 3 cities where we can rate Narrow-Collared Snail-Eating Beetle sightings, Portland ranks 3rd at about 10%, level with the leaders once rounded. The best odds are in Vancouver (Canada, about 10%) and Seattle (United States, about 10%).
GBIF citizen-science records
It is estimated from how often the Narrow-Collared Snail-Eating Beetle is recorded against all the insects logged in Portland (47 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.
