Base-spotted Pigmy vs Least Thorn Pigmy

Stigmella basiguttella compared with Stigmella perpygmaeella

Key Differences

• Base-spotted Pigmy is Near Threatened while Least Thorn Pigmy is Vulnerable.

Taxonomic Classification

Rank	Base-spotted Pigmy	Least Thorn Pigmy
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Arthropoda (Gliederfüßer)	Arthropoda (Gliederfüßer)
Class same	Insecta (Insekten)	Insecta (Insekten)
Order same	Lepidoptera (Schmetterlinge)	Lepidoptera (Schmetterlinge)
Family same	Nepticulidae	Nepticulidae
Genus same	Stigmella	Stigmella
Species	Stigmella basiguttella	Stigmella perpygmaeella

Evolutionary Relationship

Base-spotted Pigmy and Least Thorn Pigmy share a common ancestor at the Genus level: Stigmella.

Conservation Status

Base-spotted Pigmy

NT — Near Threatened

Least Thorn Pigmy

VU — Vulnerable

Physical Characteristics

Attribute	Base-spotted Pigmy	Least Thorn Pigmy
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Base-spotted Pigmy

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

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

Least Thorn Pigmy

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

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

Base-spotted Pigmy

The Base-spotted Pigmy (Stigmella basiguttella) is a species in the genus Stigmella. It is currently classified as Near Threatened 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