Long-haired June Beetle

Polyphylla crinita · Order: Coleoptera · Family: Scarabaeidae

Also called: Ten-lined June Beetle, Long-haired Chafer

No source yet on danger. We have no source yet on whether it bites, stings or damages anything.
Long-haired June Beetle
Photo: Ken-ichi Ueda, CC BY

The Long-haired June beetle has noticeable hairs on its pronotum, which sets it apart from similar species. It lives across Central America and North America. It is often mistaken for the ten-lined June beetle and requires close-up photos to tell them apart.

Source: Wikipedia

How to recognize it

This beetle’s pronotum is covered with setae (hair).

Source: Wikipedia

Where it comes from

Its range includes Central America and North America.

Source: Wikipedia

Lookalikes

People often confuse it with the ten-lined June beetle (Polyphylla decemlineata). High-resolution photos are needed to distinguish the two species.

Source: Wikipedia

Where it is found in the US

Recorded in 8 of 51 states and DC. Most records: Washington, California, Oregon, Idaho, Montana, Arizona, Utah, Florida.

Darker = more records. Counts are museum and citizen-science records, not population size.

Source: GBIF

Status: native in North America; native in Canada. Source: iNaturalist

Months it is reported in the US

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Source: GBIF

More photos

Questions people ask

How can I tell the Long-haired June beetle apart from similar beetles?

Look for hair on the pronotum; the similar ten-lined June beetle has scales instead.

Source: Wikipedia

Where might I find this beetle?

It occurs in both Central America and North America.

Source: Wikipedia

Same family (Scarabaeidae)

Sources

  • Wikipedia: https://en.wikipedia.org/wiki/Polyphylla_crinita

Look it up elsewhere: GBIF · iNaturalist · BugGuide · ITIS · Wikipedia

Text written 2026-10-25 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-25.

How this page works

This is one bug's fact sheet. The colored box at the top says whether it is dangerous. Sections below cover how to recognize it, whether it is a pest, and how to deal with it. The US map shows which states have records; tap a state to see other bugs there.

Every fact on Bug FAQ comes from a named source (university extension sites, government agencies, GBIF, iNaturalist, Wikipedia). The source is linked next to each section. If we have no source for something, we leave it out.