Black-headed Pigmy vs Least Thorn Pigmy

Stigmella atricapitella compared with Stigmella perpygmaeella

Key Differences

• Black-headed Pigmy is Least Concern while Least Thorn Pigmy is Vulnerable.

Taxonomic Classification

Rank	Black-headed Pigmy	Least Thorn Pigmy
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum same	Arthropoda (arthropodes)	Arthropoda (arthropodes)
Class same	Insecta (insecte)	Insecta (insecte)
Order same	Lepidoptera (Butterflies & Moths)	Lepidoptera (Butterflies & Moths)
Family same	Nepticulidae	Nepticulidae
Genus same	Stigmella	Stigmella
Species	Stigmella atricapitella	Stigmella perpygmaeella

Evolutionary Relationship

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

Conservation Status

Black-headed Pigmy

LC — Least Concern

Least Thorn Pigmy

VU — Vulnerable

Physical Characteristics

Attribute	Black-headed Pigmy	Least Thorn Pigmy
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black-headed Pigmy

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, Portugal, and Sweden.

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.

Black-headed Pigmy

The Black-headed Pigmy (Stigmella atricapitella) 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