Saperda carcharias
In 3 days ~10% in a week ~20%
Saperda carcharias is a species of longhorn beetle. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Helsinki | 🇫🇮 Finland | |
| 2 | Saint Petersburg | 🇷🇺 Russia | |
| 3 | Moscow | 🇷🇺 Russia |
Rare
Under 5% of wildlife watchers report a Poplar Borer sighting in Saint Petersburg on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 272nd most-seen of the 448 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.
August
In that month about 10% of wildlife watchers report a Poplar Borer in Saint Petersburg on a given day, against under 5% in September to July, the lowest months. That is one of Saint Petersburg's wettest months, with about 100 mm of rain against 40 mm in February.
2nd of 3
Of the 3 cities where we can rate Poplar Borer sightings, Saint Petersburg ranks 2nd at under 5%. The best odds are in Helsinki (Finland, about 10%).
GBIF citizen-science records
It is estimated from how often the Poplar Borer is recorded against all the insects logged in Saint Petersburg (8 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.
