Agrilus cuprescens
In 3 days ~10% in a week ~20%
Agrilus cuprescens, known generally as the rose stem girdler or bronze cane borer, is a species of metallic wood-boring beetle in the family Buprestidae. It is found in Europe and Northern Asia (excluding China) and North America. Wikipedia →
| # | Park | Country | Daily sighting probability |
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More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Rose Stem Girdler sighting in Portland on a given day, based on 18 verified sightings from GBIF citizen-science data. It is the 249th most-seen of the 507 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.
June
In that month about 10% of wildlife watchers report a Rose Stem Girdler in Portland on a given day, against under 5% in July to May, the lowest months. That is one of Portland's driest months, with about 55 mm of rain against 250 mm in December.
2nd of 6
Of the 6 cities where we can rate Rose Stem Girdler sightings, Portland ranks 2nd at under 5%. The best odds are in London (United Kingdom, about 10%).
GBIF citizen-science records
It is estimated from how often the Rose Stem Girdler is recorded against all the insects logged in Portland (18 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.
