Bayer's emerald bottle fly vs Long-tailed Sylph

Bellardia bayeri compared with Aglaiocercus kingii

Key Differences

• Bayer's emerald bottle fly is Not Evaluated while Long-tailed Sylph is Least Concern.

Taxonomic Classification

Rank	Bayer's emerald bottle fly	Long-tailed Sylph
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Aves (Birds)
Order	Diptera (Diptera)	Apodiformes (Apodiformes)
Family	Calliphoridae	Trochilidae
Genus	Bellardia	Aglaiocercus
Species	Bellardia bayeri	Aglaiocercus kingii

Evolutionary Relationship

Bayer's emerald bottle fly and Long-tailed Sylph share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Bayer's emerald bottle fly

NE — Not Evaluated

Long-tailed Sylph

LC — Least Concern

Physical Characteristics

Attribute	Bayer's emerald bottle fly	Long-tailed Sylph
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bayer's emerald bottle fly

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Denmark, Norway, Sweden, and United States.

Long-tailed Sylph

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Bayer's emerald bottle fly

The Bayer's emerald bottle fly (Bellardia bayeri) is a species in the genus Bellardia. Typically found in virtually all terrestrial and freshwater habitats.

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