Cryptorhynchus lapathi
In 3 days ~10% in a week ~30%
Cryptorhynchus lapathi is a species of weevil native to Europe. Its common names include poplar and willow borer, osier weevil, and willow weevil. This weevil has long been known as a pest insect of willows cultivated for basketry. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Great Bear Rainforest | 🇨🇦 Canada | |
| 2 | Olympic National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Saint Petersburg | 🇷🇺 Russia | |
| 2 | Calgary | 🇨🇦 Canada | |
| 3 | Vancouver | 🇨🇦 Canada | |
| 4 | Seattle | 🇺🇸 United States | |
| 5 | Montreal | 🇨🇦 Canada |
Rare
Under 5% of wildlife watchers report a Poplar-And-Willow Borer sighting in Great Bear Rainforest on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 200th most-seen of the 235 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
June and August
In those months about 10% of wildlife watchers report a Poplar-And-Willow Borer in Great Bear Rainforest on a given day, against under 5% in July and September–May, the lowest months. Those are among Great Bear Rainforest's driest months, with about 160 mm of rain a month against 480 mm in November.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Poplar-And-Willow Borer sightings with a recorded time, and about half of them come between 6 am and 6 pm: it is most active around dawn and dusk.
Yes
Of the 2 parks where we can rate Poplar-And-Willow Borer sightings, Great Bear Rainforest has the highest daily chance: under 5%. Next come Olympic National Park (United States, under 5%).
Same family: Curculionidae
The closest relatives of the Poplar-And-Willow Borer that you can see in Great Bear Rainforest (family Curculionidae, True Weevils) are Black Vine Weevil (about 10%) and Clay-Coloured Weevil (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Poplar-And-Willow Borer is recorded against all the insects logged in Great Bear Rainforest (5 verified sightings from 2019 to 2026), 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.
