Aspen Pigmy vs Barred Elm Pigmy

Stigmella assimilella compared with Stigmella ulmivora

Key Differences

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

Taxonomic Classification

Rank	Aspen Pigmy	Barred Elm Pigmy
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum same	Arthropoda (สัตว์ขาปล้อง)	Arthropoda (สัตว์ขาปล้อง)
Class same	Insecta (แมลง)	Insecta (แมลง)
Order same	Lepidoptera (ผีเสื้อ)	Lepidoptera (ผีเสื้อ)
Family same	Nepticulidae	Nepticulidae
Genus same	Stigmella	Stigmella
Species	Stigmella assimilella	Stigmella ulmivora

Evolutionary Relationship

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

Conservation Status

Aspen Pigmy

LC — Least Concern

Barred Elm Pigmy

EN — Endangered

Physical Characteristics

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

Habitat & Geographic Range

Aspen Pigmy

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

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.

Aspen Pigmy

The Aspen Pigmy (Stigmella assimilella) 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. 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.

Shared Countries

Both species can be found in 4 countries:

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