Judolia cordifera
In 3 days ~10% in a week ~30%
Judolia cordifera is a species of beetle in the family Cerambycidae. It was described by Guillaume-Antoine Olivier in 1795. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Great Smoky Mountains National Park | 🇺🇸 United States |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Boston | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Chestnut Longhorn Beetle sighting in Great Smoky Mountains National Park on a given day, based on 11 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 441st most-seen of the 822 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.
May and June
In those months about 10% of wildlife watchers report a Chestnut Longhorn Beetle in Great Smoky Mountains National Park on a given day, against under 5% in July to April, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Chestnut Longhorn 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.
Only Great Smoky Mountains National Park, in our data
Great Smoky Mountains National Park is the only park on Wallace's Line with enough records to rate Chestnut Longhorn Beetle sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Cerambycidae
The closest relatives of the Chestnut Longhorn Beetle that you can see in Great Smoky Mountains National Park (family Cerambycidae, Longhorn Beetles) are Broad-Necked Root Borer (about 20%), Strangalepta Flower Longhorn Beetle (about 10%) and Eastern Elderberry Borer (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Chestnut Longhorn Beetle is recorded against all the insects logged in Great Smoky Mountains National Park (11 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.
