Brochymena quadripustulata
In 3 days ~20% in a week ~30%
Brochymena quadripustulata, known generally as the four-humped stink bug or rough stink bug, is a species of stink bug in the family Pentatomidae. It is found in North America. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Montreal | 🇨🇦 Canada | |
| 2 | Baltimore | 🇺🇸 United States | |
| 3 | Washington | 🇺🇸 United States | |
| 4 | Dallas | 🇺🇸 United States | |
| 5 | Toronto | 🇨🇦 Canada |
With luck
About 10% of wildlife watchers report a Four-Humped Stink Bug sighting in Montreal on a given day, based on 80 verified sightings from GBIF citizen-science data. It is the 134th most-seen of the 926 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.
August to October
In those months about 10% of wildlife watchers report a Four-Humped Stink Bug in Montreal on a given day, against under 5% in November to July, the lowest months.
Yes
Of the 5 cities where we can rate Four-Humped Stink Bug sightings, Montreal has the highest daily chance: about 10%. Next come Baltimore (United States, under 5%) and Washington (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Four-Humped Stink Bug is recorded against all the insects logged in Montreal (80 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.
