Clemens' False Skeletonizer

Acoloithus falsarius · Order: Lepidoptera · Family: Zygaenidae

Also called: Clemens' False Skeletonizer Moth

Damages trees, gardens or crops. The larvae damage grape vines and related plants.

Source: Wikipedia

Clemens' False Skeletonizer
Photo: Judy Gallagher, CC BY-SA

Adults have a wingspan of about 15 mm and a body length of 9 to 10 mm. They are black with a broken orange collar and live in North America. Larvae feed on grape-vine (Vitis) and Ampelopsis species, and in Florida they produce two generations each year.

Source: Wikipedia

How to recognize it

The moth is black with a broken orange collar around the thorax.

Source: Wikipedia

Size

Adults have a wingspan of roughly 15 mm and a body length of 9 to 10 mm.

Source: Wikipedia

Where it lives

It occurs throughout North America.

Source: Wikipedia

What it eats

Larvae feed on plants in the Vitis and Ampelopsis genera.

Source: Wikipedia

Life cycle

In Florida the species has two generations per year.

Source: Wikipedia

Where it comes from

Its native range is North America.

Source: Wikipedia

Where it is found in the US

Recorded in 29 of 51 states and DC. Most records: Alabama, North Carolina, Texas, Virginia, Georgia, Maryland, Ohio, Vermont.

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

Source: GBIF

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

Months it is reported in the US

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Source: GBIF

More photos

Questions people ask

What plants do the larvae eat?

The larvae feed on grape-vine (Vitis) and Ampelopsis species.

Source: Wikipedia

How many generations are produced each year?

In Florida the moth produces two generations per year.

Source: Wikipedia

How big are the adult moths?

Adults have a wingspan of about 15 mm and a length of 9 to 10 mm.

Source: Wikipedia

Where is this species found?

It occurs throughout North America.

Source: Wikipedia

Same family (Zygaenidae)

Sources

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

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

Text written 2026-10-24 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-24.

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.