Colorful Cherry Millipede

Apheloria polychroma · Order: Polydesmida · Family: Xystodesmidae

Can irritate skin. It can spray hydrogen cyanide to containing secretions that may irritate skin.

Source: Wikipedia

Colorful Cherry Millipede
Photo: charlie olson, CC BY

It lives in moist deciduous forests of Kentucky, Virginia, Tennessee and Georgia, often under decaying leaves, and when disturbed it releases a cyanide-smelling spray that can irritate skin.

Source: Wikipedia

How to recognize it

This four-spot pattern occurs east of Cumberland Mountain, from Big Stone Gap, Virginia to Norris, Tennessee.

Source: Wikipedia

Size

The species can reach about two inches long.

Source: Wikipedia

Can it bite, sting or make you sick?

Handling the millipede causes it to release a large amount of these secretions.

Source: Wikipedia

Where it lives

It is usually found in moist deciduous forests and occasionally in drier glades such as mixed forest with eastern red cedar.

Source: Wikipedia

What it eats

Its feces provide food for microbes, fungi and plants.

Source: Wikipedia

Life cycle

The male gonopods have a uniformly narrow, circular distal part and a scythe-shaped proximal projection.

Source: Wikipedia

When you see it

When handled, it emits a large quantity of defensive secretions.

Source: Wikipedia

Where it comes from

It occurs in Kentucky, Virginia, Tennessee and Georgia.

Source: Wikipedia

Lookalikes

It can be confused with its close relative Apheloria montana in eastern Tennessee. It is distinguished from other Apheloria species by the shape of its gonopods.

Source: Wikipedia

Where it is found in the US

Recorded in 4 of 51 states and DC. Most records: Virginia, Tennessee, Kentucky, Georgia.

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

Source: GBIF

Months it is reported in the US

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Source: GBIF

More photos

Questions people ask

How big does it get?

Adults are 38 to 58 mm long, about two inches, with females larger than males.

Source: Wikipedia

Where is it found?

It lives in moist forests of Kentucky, Virginia, Tennessee and Georgia, often under leaf litter.

Source: Wikipedia

Is it dangerous to handle?

When disturbed it sprays hydrogen cyanide-containing secretions that can irritate skin.

Source: Wikipedia

Same family (Xystodesmidae)

Sources

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

Look it up elsewhere: GBIF · iNaturalist · BugGuide · 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.