Blackthorn Argent vs Long-tailed Sylph

Argyresthia spinosella compared with Aglaiocercus kingii

Key Differences

• Blackthorn Argent is Endangered while Long-tailed Sylph is Least Concern.

Taxonomic Classification

Rank	Blackthorn Argent	Long-tailed Sylph
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Aves (Birds)
Order	Lepidoptera (Butterflies & Moths)	Apodiformes (Apodiformes)
Family	Argyresthiidae	Trochilidae
Genus	Argyresthia	Aglaiocercus
Species	Argyresthia spinosella	Aglaiocercus kingii

Evolutionary Relationship

Blackthorn Argent and Long-tailed Sylph share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Blackthorn Argent

EN — Endangered

Long-tailed Sylph

LC — Least Concern

Physical Characteristics

Attribute	Blackthorn Argent	Long-tailed Sylph
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blackthorn Argent

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

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

Long-tailed Sylph

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Blackthorn Argent

The Blackthorn Argent (Argyresthia spinosella) is a species in the genus Argyresthia. It is currently classified as Endangered on the IUCN Red List. Distributed across Belgium, Denmark, Norway, and Sweden. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Long-tailed Sylph

One of the most strikingly ornamented hummingbirds, male long-tailed sylphs have iridescent green plumage and dramatically elongated, ribbon-like outer tail feathers reaching up to 22 cm — over three times the body length. Found in Andean cloud forests of Colombia and Venezuela, they inhabit humid montane forest between 1,400–2,800 meters elevation. Males perform elaborate display flights to attract females. Their extravagant tails are a classic example of sexual selection via female preference.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway