Blacktail spurdog vs Common harp ground beetle

Squalus melanurus compared with Amara communis

Key Differences

• Blacktail spurdog is Data Deficient while Common harp ground beetle is Least Concern.

Taxonomic Classification

Rank	Blacktail spurdog	Common harp ground beetle
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Elasmobranchii	Insecta (Insects)
Order	Squaliformes (Squaliformes)	Coleoptera (Beetles)
Family	Squalidae	Carabidae
Genus	Squalus	Amara
Species	Squalus melanurus	Amara communis

Evolutionary Relationship

Blacktail spurdog and Common harp ground beetle share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Blacktail spurdog

DD — Data Deficient

Common harp ground beetle

LC — Least Concern

Physical Characteristics

Attribute	Blacktail spurdog	Common harp ground beetle
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blacktail spurdog

Common harp ground beetle

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (5 countries) and North America (Canada, United States).

Blacktail spurdog

The Blacktail spurdog (Squalus melanurus) is a species in the genus Squalus. It is currently classified as Data Deficient on the IUCN Red List.

Common harp ground beetle

The common harp ground beetle, <em>Amara communis</em>, is an insect belonging to the order Coleoptera, family Carabidae, the ground beetles. This species is distributed across Europe and North America, indicating a wide Holarctic range. Ground beetles of the genus Amara are typically found in a variety of terrestrial habitats including grasslands, agricultural fields, woodland margins, and disturbed areas. Members of this genus are generally omnivorous or seed-feeding, and some are known to consume weed seeds, giving them potential ecological significance in agroecosystems. <em>Amara communis</em> is assessed as Least Concern on the IUCN Red List, reflecting stable populations across its range. No dietary information has been provided specifically for this species in current records. Biological traits of this species remain poorly documented in the scientific literature.