Aspen Pigmy vs Water-avens Pigmy

Stigmella assimilella compared with Stigmella pretiosa

Key Differences

• Aspen Pigmy is Least Concern while Water-avens Pigmy is Near Threatened.

Taxonomic Classification

Rank	Aspen Pigmy	Water-avens Pigmy
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum same	Arthropoda (节肢动物门)	Arthropoda (节肢动物门)
Class same	Insecta (昆蟲綱)	Insecta (昆蟲綱)
Order same	Lepidoptera (鱗翅目)	Lepidoptera (鱗翅目)
Family same	Nepticulidae	Nepticulidae
Genus same	Stigmella	Stigmella
Species	Stigmella assimilella	Stigmella pretiosa

Evolutionary Relationship

Aspen Pigmy and Water-avens Pigmy share a common ancestor at the Genus level: Stigmella.

Conservation Status

Aspen Pigmy

LC — Least Concern

Water-avens Pigmy

NT — Near Threatened

Physical Characteristics

Attribute	Aspen Pigmy	Water-avens 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.

Water-avens Pigmy

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Denmark, Norway, and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden