Black-headed Systena

Systena hudsonias · Order: Coleoptera · Family: Chrysomelidae

No source yet on danger. We have no source yet on whether it bites, stings or damages anything.
Black-headed Systena
Photo: Even Dankowicz, CC BY

The black-headed flea beetle is called Systena hudsonias. It lives across North America and feeds on plants from many different families.

Source: Wikipedia

How to recognize it

Systena hudsonias is known as the black-headed flea beetle.

Source: Wikipedia

Where it lives

It is found in North America.

Source: Wikipedia

What it eats

It feeds on plants belonging to seventeen different plant families.

Source: Wikipedia

Where it comes from

Its native range is North America.

Source: Wikipedia

Where it is found in the US

Recorded in 22 of 51 states and DC. Most records: Pennsylvania, Texas, Kansas, New York, Indiana, Kentucky, Ohio, Illinois.

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

What does the black-headed flea beetle eat?

It eats plants from seventeen different families.

Source: Wikipedia

Where can I find the black-headed flea beetle?

It occurs throughout North America.

Source: Wikipedia

Same family (Chrysomelidae)

Sources

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

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

Text written 2026-10-26 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-26.

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.