Blue Featherleg vs Delacour's langur

Platycnemis pennipes compared with Trachypithecus delacouri

Key Differences

• Blue Featherleg is Least Concern while Delacour's langur is Critically Endangered.

Taxonomic Classification

Rank	Blue Featherleg	Delacour's langur
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Odonata (Odonata)	Primates (Primates)
Family	Platycnemididae	Cercopithecidae (Old World Monkeys)
Genus	Platycnemis	Trachypithecus
Species	Platycnemis pennipes	Trachypithecus delacouri

Evolutionary Relationship

Blue Featherleg and Delacour's langur share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Blue Featherleg

LC — Least Concern

Delacour's langur

CR — Critically Endangered

Physical Characteristics

Attribute	Blue Featherleg	Delacour's langur
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blue Featherleg

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Luxembourg, Norway, and Sweden.

Delacour's langur

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Blue Featherleg

A medium-sized damselfly of still and slow-flowing freshwater habitats across Europe and western Asia, blue featherlegs are named for the striking feathery tibia fringe on the males' hind legs, waved during courtship displays. Males display pale blue coloration while females are olive-green. They perch on emergent vegetation and are a good indicator species for water quality in riverine habitats. Populations have declined locally due to water pollution and agricultural intensification.