Oak Lantern

Carcina quercana · Order: Lepidoptera · Family: Peleopodidae

Also called: Long-horned Flat-body, Oak Long-horn

Damages trees, gardens or crops. The oak lantern’s larvae eat oak and beech leaves, damaging those trees.

Source: Wikipedia

Oak Lantern
Photo: Donald Hobern, CC BY

The oak lantern is a small moth with a 16 to 20 mm wingspan. Its forewings are light ochreous with purple tinges, yellow blotches, and a bright-yellow fringe, while the hindwings are pale yellow-white with a rosy tip. The larvae feed on deciduous trees such as oak and beech, stripping leaves.

Source: Wikipedia

How to recognize it

Forewings are light ochreous, often purple-tinged, with dark speckles, a purple costal edge, yellow blotches near the base and beyond the middle, a dark transverse line near one-quarter, and a terminal purple line; the fringe is bright yellow except at the tornus. Hindwings are yellow-whitish with a rosy-tinged apex. The larva is pale green with a darker dorsal line edged in lighter colour and a yellowish-green head.

Source: Wikipedia

Size

Wingspan ranges from 16 to 20 mm.

Source: Wikipedia

Where it lives

It occurs throughout Europe and has recently been introduced to western North America, including British Columbia and Washington.

Source: Wikipedia

What it eats

Larvae feed on a variety of deciduous trees, especially oak and beech.

Source: Wikipedia

Where it comes from

Native to Europe.

Source: Wikipedia

Lookalikes

Also called long-horned flat-body or oak-skeletonizer moth, especially in North America.

Source: Wikipedia

Where it is found in the US

Recorded in 2 of 51 states and DC. Most records: Washington, Kansas.

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

Source: GBIF

Status: introduced in Canada; introduced in United States. Source: iNaturalist

Months it is reported in the US

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Source: GBIF

More photos

Oak Lantern photo 3
Photo: user12, CC BY
Oak Lantern photo 4
Photo: DeeF, CC BY
Oak Lantern photo 5
Photo: giantcicada, CC BY

Questions people ask

What trees does the oak lantern damage?

Its caterpillars eat the leaves of oak and beech trees.

Source: Wikipedia

Where is the oak lantern found?

It lives across Europe and has recently spread to western Canada and the US Pacific Northwest.

Source: Wikipedia

How big is the oak lantern?

The adult moth’s wingspan is about 16 to 20 mm.

Source: Wikipedia

What does the oak lantern look like?

It has light ochreous forewings with purple tinges, yellow blotches, a dark line near the base, and bright-yellow fringe; hindwings are pale yellow-white with a rosy tip.

Source: Wikipedia

Same family (Peleopodidae)

Sources

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

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

Text written 2026-10-22 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-22.

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.