Grey Dwarf
Elachista bedellella
The Grey Dwarf (Elachista bedellella) is a small microlepidopteran moth with distinctive grey forewings marked by pale streaks and a wingspan of approximately 8-10mm. As a leaf-mining specialist, the larvae create characteristic linear mines in grass blades, playing an important role in grassland ecosystem dynamics and serving as prey for various insectivorous species.
19
Countries
Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Elachista_bedellella
Taxonomy & Classification
Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Lepidoptera
Family
Elachistidae
Genus
Elachista
Grey Dwarf belongs to the family Elachistidae, order Lepidoptera, within the Insecta class.
Species Profile
The Grey Dwarf (Elachista bedellella) is a small microlepidopteran moth with distinctive grey forewings marked by pale streaks and a wingspan of approximately 8-10mm. As a leaf-mining specialist, the larvae create characteristic linear mines in grass blades, playing an important role in grassland ecosystem dynamics and serving as prey for various insectivorous species.
The Grey Dwarf (Elachista bedellella) is declining primarily due to habitat loss and degradation of its specialized grassland environments. Agricultural intensification, urban development, and changes in land management practices have reduced the availability of suitable breeding and feeding sites for this small moth species.
Key Facts
Habitat & Distribution
This species inhabits species-rich calcareous grasslands, chalk downs, and limestone pavements where its host grasses thrive in short, nutrient-poor turf. It shows particular association with areas of fine-leaved grasses growing in well-drained, alkaline soils with sparse vegetation cover.
Threats
IUCN Red List: Endangered
The Grey Dwarf (Elachista bedellella) is declining primarily due to habitat loss and degradation of its specialized grassland environments. Agricultural intensification, urban development, and changes in land management practices have reduced the availability of suitable breeding and feeding sites for this small moth species.
Habitat loss from agricultural intensification
Urban and infrastructure development
Changes in grassland management practices
Climate change impacts on habitat suitability
Loss of host plant species
Found in 19 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). Grey Dwarf (Elachista bedellella). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/grey-dwarf