Black-headed Dwarf vs Long-tailed Sylph

Elachista atricomella compared with Aglaiocercus kingii

Taxonomic Classification

Rank	Black-headed Dwarf	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	Elachistidae	Trochilidae
Genus	Elachista	Aglaiocercus
Species	Elachista atricomella	Aglaiocercus kingii

Evolutionary Relationship

Black-headed Dwarf and Long-tailed Sylph share a common ancestor at the Kingdom level: Animalia. (Animals)

View Kingdom: Animalia

Conservation Status

Black-headed Dwarf

LC — Least Concern

Long-tailed Sylph

LC — Least Concern

Physical Characteristics

Attribute	Black-headed Dwarf	Long-tailed Sylph
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black-headed Dwarf

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Long-tailed Sylph

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Black-headed Dwarf

The Black-headed Dwarf (Elachista atricomella) is a species in the genus Elachista. It is currently classified as Least Concern on the IUCN Red List. 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.