Long-Haired June Beetle

Long-Haired June Beetle

Polyphylla crinita

Daily sighting probability <5% · Rare
at Seattle

In 3 days ~10% in a week ~30%

47 Verified sightings at Seattle
61 In all 2 parks From 2019 to 2026
July Best month
☀️🌙 Day & Night When it's spotted

About the Long-Haired June Beetle

Polyphylla crinita is a species of scarab beetle in the family Scarabaeidae. It is found in Central America and North America. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Pacific Rim National Park Reserve 🇨🇦 Canada
~20%
2 Great Bear Rainforest 🇨🇦 Canada
~10%

Cities Where Found

# City Country Daily sighting probability
1 Vancouver 🇨🇦 Canada
~10%
2 Seattle 🇺🇸 United States
<5%
3 Portland 🇺🇸 United States
<5%

Before you go

What are the chances of seeing a Long-Haired June Beetle in Seattle?

Rare

Under 5% of wildlife watchers report a Long-Haired June Beetle sighting in Seattle on a given day, based on 47 verified sightings from GBIF citizen-science data. It is the 115th most-seen of the 428 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.

When is the best time to see a Long-Haired June Beetle in Seattle?

June and July

In those months about 10% of wildlife watchers report a Long-Haired June Beetle in Seattle on a given day, against under 5% in August to May, the lowest months. Those are among Seattle's driest months, with about 35 mm of rain a month against 190 mm in November.

What time of day is best to see a Long-Haired June Beetle?

Between 10 am and 1 pm

Across all the parks we cover, that three-hour window holds the most Long-Haired June Beetle sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.

Is Seattle the best place to see a Long-Haired June Beetle?

2nd of 3

Of the 3 cities where we can rate Long-Haired June Beetle sightings, Seattle ranks 2nd at under 5%. The best odds are in Vancouver (Canada, about 10%).

Where does the Long-Haired June Beetle sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Long-Haired June Beetle is recorded against all the insects logged in Seattle (47 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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