Base-spotted Pigmy vs Brook Alder

Stigmella basiguttella compared with Alnus maritima

Key Differences

Base-spotted Pigmy is Near Threatened while Brook Alder is Endangered.

Taxonomic Classification

Rank	Base-spotted Pigmy	Brook Alder
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Arthropoda (Arthropods)	Magnoliophyta (Flowering Plants)
Class	Insecta (Insects)	Magnoliopsida (Dicots)
Order	Lepidoptera (Butterflies & Moths)	Fagales (Beeches & Oaks)
Family	Nepticulidae	Betulaceae
Genus	Stigmella	Alnus
Species	Stigmella basiguttella	Alnus maritima

Conservation Status

Base-spotted Pigmy

NT — Near Threatened

Brook Alder

EN — Endangered

Physical Characteristics

Attribute	Base-spotted Pigmy	Brook Alder
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.

Brook Alder

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Distributed across Belgium, France, Netherlands, and United Kingdom. Currently classified as Endangered 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.

Brook Alder

The Brook Alder (Alnus maritima) is a species in the genus Alnus. It is currently classified as Endangered on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.