Xylotrechus colonus
In 3 days ~10% in a week ~30%
Xylotrechus colonus is a species of beetle in the family Cerambycidae, subfamily Cerambycinae, and tribe Clytini. Its common name is rustic borer or rustic borer beetle. It was described by Johan Christian Fabricius in 1775. The larvae of this beetle feed on the sapwood of oaks (Quercus), whereas adults feed on the nectar of goldenrod (Solidago) and other composite flowers. The wing covers are black, with variable bands of grey, and a sinuous yellow mark near the base. The underside of the beetle is black, with faint yellow banding. 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 | Baltimore | 🇺🇸 United States | |
| 2 | Houston | 🇺🇸 United States | |
| 3 | Dallas | 🇺🇸 United States | |
| 4 | Washington | 🇺🇸 United States | |
| 5 | Philadelphia | 🇺🇸 United States | |
| 6 | Toronto | 🇨🇦 Canada | |
| 7 | New York City | 🇺🇸 United States | |
| 8 | Boston | 🇺🇸 United States | |
| 9 | Chicago | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Rustic Borer sighting in Houston on a given day, based on 53 verified sightings from GBIF citizen-science data. It is the 256th most-seen of the 1057 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.
July and September
In those months about 10% of wildlife watchers report a Rustic Borer in Houston on a given day, against under 5% in August and October–June, the lowest months.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Rustic Borer sightings with a recorded time, and about 8 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
2nd of 9
Of the 9 cities where we can rate Rustic Borer sightings, Houston ranks 2nd at under 5%. The best odds are in Baltimore (United States, about 10%).
GBIF citizen-science records
It is estimated from how often the Rustic Borer is recorded against all the insects logged in Houston (53 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.
