Bad-smelling Alkanet vs Comfrey Ermel

Alkanna maleolens compared with Ethmia quadrillella

Key Differences

• Bad-smelling Alkanet is Critically Endangered while Comfrey Ermel is Extinct.

Taxonomic Classification

Rank	Bad-smelling Alkanet	Comfrey Ermel
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Arthropoda (Arthropods)
Class	Magnoliopsida (Dicots)	Insecta (Insects)
Order	Boraginales (Boraginales)	Lepidoptera (Butterflies & Moths)
Family	Boraginaceae	Ethmiidae
Genus	Alkanna	Ethmia
Species	Alkanna maleolens	Ethmia quadrillella

Conservation Status

Bad-smelling Alkanet

CR — Critically Endangered

Comfrey Ermel

EX — Extinct

Physical Characteristics

Attribute	Bad-smelling Alkanet	Comfrey Ermel
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bad-smelling Alkanet

Habitat

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

Comfrey Ermel

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Bad-smelling Alkanet

The Bad-smelling Alkanet (Alkanna maleolens) is a species in the genus Alkanna. It is currently classified as Critically Endangered on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Comfrey Ermel

<em>Ethmia quadrillella</em>, commonly known as the Comfrey Ermel, is a small moth species belonging to the family Depressariidae. This species is now considered Extinct, with historical populations recorded across parts of northern and western Europe, including Belgium, Denmark, Norway, and Sweden. It was associated with open and semi-open habitats where its larval host plants, particularly species of comfrey (Symphytum), once grew. The Comfrey Ermel typically inhabited lowland environments near riverbanks, hedgerows, and disturbed ground where its herbaceous host plants thrived. The dramatic decline and eventual extinction of this species is attributed to habitat loss, agricultural intensification, and the disappearance of suitable host plant communities across its former range. Precise data on its lifespan, body size, and behavioral characteristics remain limited, as the species disappeared before comprehensive biological studies could be conducted. Biological traits of this species remain poorly documented in the scientific literature.