Big Finner vs Orange-legged Robberfly

Balaenoptera physalus compared with Dioctria oelandica

Key Differences

Big Finner is Endangered while Orange-legged Robberfly is Near Threatened.

Taxonomic Classification

Rank	Big Finner	Orange-legged Robberfly
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Insecta (Insects)
Order	Cetacea (Whales & Dolphins)	Diptera (Diptera)
Family	Balaenopteridae (Rorquals)	Asilidae
Genus	Balaenoptera (Rorquals)	Dioctria
Species	Balaenoptera physalus	Dioctria oelandica

Evolutionary Relationship

Big Finner and Orange-legged Robberfly share a common ancestor at the Kingdom level: Animalia. (Animals)

View Kingdom: Animalia

Conservation Status

Big Finner

EN — Endangered

Orange-legged Robberfly

NT — Near Threatened

Physical Characteristics

Attribute	Big Finner	Orange-legged Robberfly
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Big Finner

Habitat

Found across multiple habitat types including tropical and subtropical dry broadleaf forests, flooded grasslands and savannas, and montane grasslands and shrublands, among 4 distinct biome types within the Neotropic biogeographic realm.

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), and South America (Colombia, Ecuador, Venezuela). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Orange-legged Robberfly

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Big Finner

Big Finner (Balaenoptera physalus) is classified as Endangered (EN) on the IUCN Red List. At high risk of extinction in the wild, with significant population decline and ongoing threats to survival.