Cryptorhynchus lapathi
In 3 days ~10% in a week ~20%
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 Olympic National Park on a given day, based on 6 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 162nd most-seen of the 207 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.
May
In that month about 10% of wildlife watchers report a Poplar-And-Willow Borer in Olympic National Park on a given day, against under 5% in June to April, the lowest months. That is one of Olympic National Park's driest months, with about 90 mm of rain against 370 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.
Among the best
Of the 2 parks where we can rate Poplar-And-Willow Borer sightings, Olympic National Park ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Great Bear Rainforest (Canada, under 5%).
Same order: Coleoptera
The closest relatives of the Poplar-And-Willow Borer that you can see in Olympic National Park (order Coleoptera, Beetles) are Narrow-Collared Snail-Eating Beetle (about 20%), White-Spotted Sawyer (about 10%) and Red Net-Winged Beetle (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 Olympic National Park (6 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.
