Greater Oak Dagger and Close Allies

Acronicta lobeliae · Order: Lepidoptera · Family: Noctuidae

Also called: Greater Oak Dagger, Lobelia Dagger Moth, Greater Oak Dagger Moth

Damages trees, gardens or crops. The larvae feed on oak leaves, damaging oak trees.

Source: Wikipedia

Greater Oak Dagger and Close Allies
Photo: unknown, CC0

It lives in North America. Its caterpillars eat oak (Quercus) leaves, which can harm oak trees.

Source: Wikipedia

How to recognize it

Achille Guenée described the species in 1852.

Source: Wikipedia

Where it lives

The species is found in North America.

Source: Wikipedia

What it eats

Larvae feed on oak (Quercus) species.

Source: Wikipedia

Where it comes from

It is native to North America.

Source: Wikipedia

Where it is found in the US

Recorded in 40 of 51 states and DC. Most records: Texas, North Carolina, Michigan, Georgia, Ohio, Virginia, Pennsylvania, Massachusetts.

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

What trees do the larvae eat?

The larvae feed on oak (Quercus) species.

Source: Wikipedia

Same family (Noctuidae)

Sources

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

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

Text written 2026-10-23 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-23.

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.