Agrilus bilineatus
In 3 days ~10%
Agrilus bilineatus, the two-lined chestnut borer, is a species of metallic wood-boring beetle in the family Buprestidae. It is native to North America, and has been introduced to Turkey. It is known for its two white lines in the elytra, it bores into chestnut, but also bores into oak trees. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Boston | 🇺🇸 United States | |
| 2 | Washington | 🇺🇸 United States | |
| 3 | New York City | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Two-Lined Chestnut Borer sighting in New York City on a given day, based on 7 verified sightings from GBIF citizen-science data. It is the 1254th most-seen of the 1623 insects we can rate there. Over three days the chance rises to about 10%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Two-Lined Chestnut Borer in New York City on a given day, so our monthly data shows no clear season.
Among the best
Of the 3 cities where we can rate Two-Lined Chestnut Borer sightings, New York City ranks 3rd at under 5%, level with the leaders once rounded. The best odds are in Boston (United States, under 5%) and Washington (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Two-Lined Chestnut Borer is recorded against all the insects logged in New York City (7 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.
