Common harp ground beetle vs marbled crayfish

Amara communis compared with Procambarus virginalis

Key Differences

• Common harp ground beetle is Least Concern while marbled crayfish is Not Evaluated.

Taxonomic Classification

Rank	Common harp ground beetle	marbled crayfish
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Arthropoda (Arthropods)	Arthropoda (Arthropods)
Class	Insecta (Insects)	Malacostraca (Crustaceans)
Order	Coleoptera (Beetles)	Decapoda (Decapoda)
Family	Carabidae	Cambaridae
Genus	Amara	Procambarus
Species	Amara communis	Procambarus virginalis

Evolutionary Relationship

Common harp ground beetle and marbled crayfish share a common ancestor at the Phylum level: Arthropoda. (Arthropods)

Conservation Status

Common harp ground beetle

LC — Least Concern

marbled crayfish

NE — Not Evaluated

Physical Characteristics

Attribute	Common harp ground beetle	marbled crayfish
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

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).

marbled crayfish

Habitat

Typically found in marine, freshwater, and terrestrial environments.

Range

Widely distributed across Africa (Madagascar), Asia (Taiwan), and Europe (4 countries).

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.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden