Common Blue vs Indochinese Gray Langur

Polyommatus icarus compared with Trachypithecus crepusculus

Key Differences

• Common Blue is Least Concern while Indochinese Gray Langur is Endangered.

Taxonomic Classification

Rank	Common Blue	Indochinese Gray Langur
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Lepidoptera (Butterflies & Moths)	Primates (Primates)
Family	Lycaenidae	Cercopithecidae (Old World Monkeys)
Genus	Polyommatus	Trachypithecus
Species	Polyommatus icarus	Trachypithecus crepusculus

Evolutionary Relationship

Common Blue and Indochinese Gray Langur share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Common Blue

LC — Least Concern

Indochinese Gray Langur

EN — Endangered

Physical Characteristics

Attribute	Common Blue	Indochinese Gray Langur
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Common Blue

Habitat

Inhabits Mediterranean forests and woodlands within the Palearctic biogeographic realm.

Range

Widely distributed across Asia (Cyprus), Europe (40 countries), and North America (United States).

Indochinese Gray Langur

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Common Blue

Common Blue (Polyommatus icarus) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.