Neandra brunnea
In 3 days ~10% in a week ~20%
Neandra brunnea, the pole borer, is a species of the longhorn beetle family, subfamily Parandrinae. The longhorn beetle grows between 8 and 20 mm (0.79 in) and is yellowish-brown or reddish-brown in colour with relatively short, serrate antennae. Its range includes the entire eastern portion of North America. It can be seen between March and November. 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 | Montreal | 🇨🇦 Canada | |
| 2 | Detroit | 🇺🇸 United States | |
| 3 | Philadelphia | 🇺🇸 United States | |
| 4 | Chicago | 🇺🇸 United States | |
| 5 | Boston | 🇺🇸 United States | |
| 6 | Toronto | 🇨🇦 Canada | |
| 7 | New York City | 🇺🇸 United States | |
| 8 | Salt Lake City | 🇺🇸 United States | |
| 9 | Washington | 🇺🇸 United States | |
| 10 | Denver | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Pole Borer sighting in Denver on a given day, based on 13 verified sightings from GBIF citizen-science data. It is the 232nd most-seen of the 461 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.
July
In that month about 10% of wildlife watchers report a Pole Borer in Denver on a given day, against under 5% in August to June, the lowest months. That is one of Denver's wettest months, with about 60 mm of rain against 15 mm in January.
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Pole Borer sightings with a recorded time, and about 9 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Among the best
Of the 12 cities where we can rate Pole Borer sightings, Denver ranks 10th at under 5%, level with the leaders once rounded. The best odds are in Montreal (Canada, under 5%), Detroit (United States, under 5%) and Philadelphia (United States, under 5%).
Same family: Cerambycidae
The closest relatives of the Pole Borer that you can see in Denver (family Cerambycidae, Longhorn Beetles) are Red-Femured Milkweed Borer (about 20%), Sutured Longhorn Beetle (about 10%) and Locust Borer (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Pole Borer is recorded against all the insects logged in Denver (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.
