CreatureData

Pine knot borer

Ernobius mollis (Linnaeus, 1758)

Status not recordedbeetles

The pine knot borer (Ernobius mollis) is a species in the family Ptinidae, order Coleoptera. Recorded adults reach 3.55 mm in length.

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Quick facts about the pine knot borer

Weight
Not recorded
Length
3.55 mm
Lifespan
Not recorded
Diet
Herbivore
Main food
Not recorded
Habitat
Not recorded
Young per litter or clutch
Not recorded
Conservation status
Not recorded
Countries on record
Not recorded

How big is the pine knot borer?

PINE KNOT BORER · LENGTH 3.55 MMADULT HUMAN · HEIGHT 1.7 M
At 3.55 mm, the recorded maximum length of the pine knot borer is about 0.2% of the height of an adult human (1.7 m, a fixed reference used for scale).

Where does the pine knot borer live?

Not recorded

Where has it been introduced?

The Global Register of Introduced and Invasive Species lists the pine knot borer as introduced in 3 countries.

  1. Australia
  2. Ireland
  3. United States

Introduced means brought by people and now present; invasive means the country's checklist records an impact. A species can be native to one part of a country and introduced in another. Source: Global Register of Introduced and Invasive Species (CC BY 4.0).

Is the pine knot borer endangered?

No conservation assessment is recorded for this species in our sources. That is not the same as being safe: it has not been matched to an assessment.

How is the pine knot borer classified?

  1. kingdomAnimalia
  2. phylumArthropoda
  3. classInsecta
  4. orderColeoptera
  5. familyPtinidae
  6. genusErnobius
  7. SpeciesErnobius mollis (Linnaeus, 1758)

Synonyms Anobium convexifrons, Anobium sybaris, Birrhus mollis, Dermestes mollis, Ernobius consimilis, Ernobius convexifrons, Ernobius reversus, Ernobius sybaris, Ernobius tarsatus, Ernobius testaceus, Liozoum consimilis, Liozoum laetus, Liozoum sulcatulum

Other names and names in other languages (18)
  • Pine bark anobiid beetleEnglish
  • červotoč hnědýCzech
  • Blød borebilleDanish
  • Weicher NagekäferGerman
  • hirsikytryFinnish
  • Vrillette molleFrench
  • マツザイシバンムシJapanese
  • myk borebilleNorwegian Bokmål
  • HoutwormkeverDutch
  • Точильщик сосновой корыRussian
  • črvotoč hnedýSlovak
  • mjuk trägnagareSwedish
  • DennehoutboorderDutch
  • Fijnharige knaagkeverDutch
  • Ronde diefkeverDutch
  • Weke klopkeverDutch
  • Zachte houtwormDutch
  • Zachte houtwormkeverDutch

Catalogue of Life

Relatives of the pine knot borer

Other species in the same genus Ernobius.

ComparePine knot borer vs Ernobius abietinusPine knot borer vs Ernobius abietisPine knot borer vs Ernobius alutaceusPine knot borer vs Ernobius angusticollis

Common questions

Answered only where our data holds the answer.

How big is the pine knot borer?

An adult pine knot borer measures 3.55 mm long, according to values recorded on Wikidata.

Is the pine knot borer an invasive species?

The Global Register of Introduced and Invasive Species lists the pine knot borer as introduced in 3 countries: Australia, Ireland and United States, but does not flag it as invasive in any of them.

What kind of animal is the pine knot borer?

The pine knot borer (Ernobius mollis) belongs to the family Ptinidae in the order Coleoptera.

Sources and how to cite this page

Data as of 2026-11-14. How this page is put together.

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APA

CreatureData. (2026). Pine knot borer (Ernobius mollis). Retrieved from https://creaturedata.com/animals/pine-knot-borer

MLA

“Pine knot borer (Ernobius mollis).” CreatureData, 2026, https://creaturedata.com/animals/pine-knot-borer.

BibTeX
@misc{pine_knot_borer_2026,
  title = {Pine knot borer (Ernobius mollis)},
  author = {{CreatureData}},
  year = {2026},
  url = {https://creaturedata.com/animals/pine-knot-borer},
  note = {Data as of 2026-11-14}
}