Raspberry Crown Borer

Raspberry Crown Borer

Pennisetia marginatum

Daily sighting probability <5% · Rare
at Portland

In 3 days ~10% in a week ~20%

15 Verified sightings at Portland
September Best month

Global Distribution

Parks Where Found

# Park Country Daily sighting probability

More parks will be added in future updates.

Cities Where Found

# City Country Daily sighting probability
1 Vancouver 🇨🇦 Canada
<5%
2 Portland 🇺🇸 United States
<5%
3 Seattle 🇺🇸 United States
<5%
4 Washington 🇺🇸 United States
<5%
5 Boston 🇺🇸 United States
<5%
6 New York City 🇺🇸 United States
<5%

Before you go

What are the chances of seeing a Raspberry Crown Borer in Portland?

Rare

Under 5% of wildlife watchers report a Raspberry Crown Borer sighting in Portland on a given day, based on 15 verified sightings from GBIF citizen-science data. It is the 281st 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.

When is the best time to see a Raspberry Crown Borer in Portland?

August and September

In those months about 10% of wildlife watchers report a Raspberry Crown Borer in Portland on a given day, against under 5% in October to July, the lowest months. Those are among Portland's driest months, with about 40 mm of rain a month against 250 mm in December.

Is Portland the best place to see a Raspberry Crown Borer?

Among the best

Of the 6 cities where we can rate Raspberry Crown Borer sightings, Portland ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Vancouver (Canada, under 5%).

Where does the Raspberry Crown Borer sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Raspberry Crown Borer is recorded against all the insects logged in Portland (15 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.

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