Barred Elm Pigmy vs Chestnut Pigmy

Stigmella ulmivora compared with Stigmella samiatella

Key Differences

• Barred Elm Pigmy is Endangered while Chestnut Pigmy is Least Concern.

Taxonomic Classification

Rank	Barred Elm Pigmy	Chestnut Pigmy
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Arthropoda (Arthropods)	Arthropoda (Arthropods)
Class same	Insecta (Insects)	Insecta (Insects)
Order same	Lepidoptera (Butterflies & Moths)	Lepidoptera (Butterflies & Moths)
Family same	Nepticulidae	Nepticulidae
Genus same	Stigmella	Stigmella
Species	Stigmella ulmivora	Stigmella samiatella

Evolutionary Relationship

Barred Elm Pigmy and Chestnut Pigmy share a common ancestor at the Genus level: Stigmella.

Conservation Status

Barred Elm Pigmy

EN — Endangered

Chestnut Pigmy

LC — Least Concern

Physical Characteristics

Attribute	Barred Elm Pigmy	Chestnut Pigmy
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Barred Elm Pigmy

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Chestnut Pigmy

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Barred Elm Pigmy

The Barred Elm Pigmy (Stigmella ulmivora) is a species in the genus Stigmella. It is currently classified as Endangered on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

Chestnut Pigmy

The Chestnut Pigmy (Stigmella samiatella) is a species in the genus Stigmella. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden