Perillus bioculatus
In 3 days ~10% in a week ~20%
Perillus bioculatus, the two-spotted stink bug or double-eyed soldier bug, is a species of insect in the family Pentatomidae. They are native to North America but have been introduced to Eastern Europe and North India. Both the larval and adult stages are specialized predators of eggs and larvae of the Colorado potato beetle (Leptinotarsa decemlineata). However, the first instar larvae feed by sucking the juices out of potato stems. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Prayagraj | 🇮🇳 India | |
| 2 | Bucharest | 🇷🇴 Romania | |
| 3 | Minneapolis [Saint Paul] | 🇺🇸 United States | |
| 4 | Denver | 🇺🇸 United States | |
| 5 | Calgary | 🇨🇦 Canada | |
| 6 | Mexico City | 🇲🇽 México | |
| 7 | Montreal | 🇨🇦 Canada | |
| 8 | San Antonio | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Two-Spotted Stink Bug sighting in Calgary on a given day, based on 7 verified sightings from GBIF citizen-science data. It is the 193rd most-seen of the 256 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.
March and December
In those months about 10% of wildlife watchers report a Two-Spotted Stink Bug in Calgary on a given day, against under 5% in January–February and April–November, the lowest months. Those are among Calgary's driest months, with about 25 mm of rain a month against 120 mm in June.
5th of 8
Of the 8 cities where we can rate Two-Spotted Stink Bug sightings, Calgary ranks 5th at under 5%. The best odds are in Prayagraj (India, about 10%), Bucharest (Romania, about 10%) and Minneapolis [Saint Paul] (United States, under 5%).
Same family: Pentatomidae
The closest relatives of the Two-Spotted Stink Bug that you can see in Calgary (family Pentatomidae, Stink Bugs) are Green Burgundy Stink Bug (about 10%) and Twice-Stabbed Stink Bug (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Two-Spotted Stink Bug is recorded against all the insects logged in Calgary (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.
