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 Toronto on a given day, based on 67 verified sightings from GBIF citizen-science data. It is the 289th most-seen of the 1689 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 and August
In those months about 10% of wildlife watchers report a Pole Borer in Toronto on a given day, against under 5% in September to June, the lowest months.
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, Toronto ranks 6th 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 Toronto (family Cerambycidae, Longhorn Beetles) are Red Milkweed Beetle (about 10%), Locust Borer (about 10%) and Banded Longhorn Beetle (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 Toronto (67 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.
