granbarkgnagare
Microbregma emarginatum
Microbregma is a monotypic genus of beetles in the family Ptinidae containing the single species Microbregma emarginatum. It is native to North America.
17
Countries
Taxonomy & Classification
Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Coleoptera
Family
Anobiidae
Genus
Microbregma
granbarkgnagare belongs to the family Anobiidae, order Coleoptera, within the Insecta class.
Species Profile
Microbregma is a monotypic genus of beetles in the family Ptinidae containing the single species Microbregma emarginatum. It is native to North America.
Primary threats include habitat fragmentation from logging operations that destroy the old-growth forest canopies essential for reproduction. Climate change is altering bark moisture levels and fungal communities that form the species' primary food source, while invasive bark beetles are disrupting the delicate microhabitat balance.
Key Facts
Habitat & Distribution
This species inhabits the deeply furrowed bark crevices of mature coniferous trees, particularly favoring the north-facing sides of ancient fir and spruce trees where moisture retention is optimal. It requires old-growth forest stands with minimal canopy disturbance and established lichen communities.
Threats
IUCN Red List: Endangered
Primary threats include habitat fragmentation from logging operations that destroy the old-growth forest canopies essential for reproduction. Climate change is altering bark moisture levels and fungal communities that form the species' primary food source, while invasive bark beetles are disrupting the delicate microhabitat balance.
Detailed threat classification data is sourced from IUCN assessments as they become available.
Found in 17 Countries
Community Sightings
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Sources & Attribution
How to Cite
IUCN: IUCN (2025). The IUCN Red List of Threatened Species. Version 2025-1. Available at: https://www.iucnredlist.org. doi:10.2305/IUCN.UK.2025-1.RLTS
GBIF: GBIF.org (2025). GBIF Home Page. Available at: https://www.gbif.org
This page: SpeciesRadar (2025). granbarkgnagare (Microbregma emarginatum). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/granbarkgnagare