Feathered slender vs Red birch slender

Caloptilia cuculipennella compared with Caloptilia betulicola

Key Differences

• Feathered slender is Near Threatened while Red birch slender is Least Concern.

Taxonomic Classification

Rank	Feathered slender	Red birch slender
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Arthropoda (Arthropods)	Arthropoda (Arthropods)
Class same	Insecta (Insects)	Insecta (Insects)
Order same	Lepidoptera (Butterflies & Moths)	Lepidoptera (Butterflies & Moths)
Family same	Gracillariidae	Gracillariidae
Genus same	Caloptilia	Caloptilia
Species	Caloptilia cuculipennella	Caloptilia betulicola

Evolutionary Relationship

Feathered slender and Red birch slender share a common ancestor at the Genus level: Caloptilia.

Conservation Status

Feathered slender

NT — Near Threatened

Red birch slender

LC — Least Concern

Physical Characteristics

Attribute	Feathered slender	Red birch slender
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Feathered slender

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Widely distributed across Asia (Japan), Europe (7 countries), and North America (United States). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Red birch slender

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Asia (Japan) and Europe (5 countries).

Shared Countries

Both species can be found in 6 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇯🇵 Japan 🇳🇴 Norway 🇷🇺 Russia 🇸🇪 Sweden