Oiceoptoma noveboracense
In 3 days ~10% in a week ~20%
Oiceoptoma noveboracense is a member of the family Silphinae, or carrion beetles, which feed on decaying organic matter such as dead animals. Its common name is the margined carrion beetle, from the orange-red margins on the pronotum, which are helpful when identifying this species. The larva is typically light brown to red and also has vertical ridges on its thorax like the adult. This diurnal beetle can be found mainly in the spring into the fall, and it has a strong preference towards a deciduous forest habitat. The primary forensic importance of this beetle is its ability to use the succession of insect fauna to provide confirmation of postmortem intervals.
Oiceoptoma noveboracense's Latin specific name means "pertaining to New York" (Latin Novum Eboracum + -ensis), referring to the original source of the type specimen. Although less common, some literature will refer to the species as Oiceoptoma noveboracensis. The genus Oiceoptoma was described by the English naturalist, William Elford Leach, in 1815.
Oiceoptoma noveboracense larvae range from light brown to dark reddish in color. The larvae are typically flat and trilobite-like in appearance... 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 | Washington | 🇺🇸 United States | |
| 2 | Montreal | 🇨🇦 Canada | |
| 3 | New York City | 🇺🇸 United States | |
| 4 | Chicago | 🇺🇸 United States | |
| 5 | Toronto | 🇨🇦 Canada |
Rare
Under 5% of wildlife watchers report a Margined Carrion Beetle sighting in Washington on a given day, based on 33 verified sightings from GBIF citizen-science data. It is the 745th most-seen of the 1807 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 Margined Carrion Beetle in Washington on a given day, so our monthly data shows no clear season.
Between 6 and 9 pm
Across all the parks we cover, that three-hour window holds the most Margined Carrion Beetle sightings with a recorded time, and about half of them come between 6 am and 6 pm: it is most active around dawn and dusk.
Yes
Of the 5 cities where we can rate Margined Carrion Beetle sightings, Washington has the highest daily chance: under 5%. Next come Montreal (Canada, under 5%) and New York City (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Margined Carrion Beetle is recorded against all the insects logged in Washington (33 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.
