arrow-head scale vs Long-tailed Sylph

Unaspis yanonensis compared with Aglaiocercus kingii

Key Differences

• arrow-head scale is Not Evaluated while Long-tailed Sylph is Least Concern.

Taxonomic Classification

Rank	arrow-head scale	Long-tailed Sylph
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Aves (Birds)
Order	Hemiptera (Hemiptera)	Apodiformes (Apodiformes)
Family	Diaspididae	Trochilidae
Genus	Unaspis	Aglaiocercus
Species	Unaspis yanonensis	Aglaiocercus kingii

Evolutionary Relationship

arrow-head scale and Long-tailed Sylph share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

arrow-head scale

NE — Not Evaluated

Long-tailed Sylph

LC — Least Concern

Physical Characteristics

Attribute	arrow-head scale	Long-tailed Sylph
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

arrow-head scale

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Asia (Japan, Taiwan) and Europe (6 countries).

Long-tailed Sylph

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

arrow-head scale

The Arrow-head scale, Unaspis yanonensis, is a species. 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.