Procecidochares atra
In 3 days ~10% in a week ~20%
Procecidochares atra is a species of tephritid or fruit flies in the genus Procecidochares of the family Tephritidae. Its galls are most common on Solidago altissima, S. gigantea, S. rugosa. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Chicago | 🇺🇸 United States | |
| 2 | Washington | 🇺🇸 United States | |
| 3 | Boston | 🇺🇸 United States | |
| 4 | Dallas | 🇺🇸 United States | |
| 5 | Toronto | 🇨🇦 Canada | |
| 6 | New York City | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Goldenrod Brussels Sprout Gall Fly sighting in Boston on a given day, based on 10 verified sightings from GBIF citizen-science data. It is the 738th most-seen of the 1200 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.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Goldenrod Brussels Sprout Gall Fly in Boston on a given day, so our monthly data shows no clear season.
Among the best
Of the 6 cities where we can rate Goldenrod Brussels Sprout Gall Fly sightings, Boston ranks 3rd at under 5%, level with the leaders once rounded. The best odds are in Chicago (United States, under 5%) and Washington (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Goldenrod Brussels Sprout Gall Fly is recorded against all the insects logged in Boston (10 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.
