Common harp ground beetle vs Triangulate Bud Spider

Amara communis compared with Steatoda triangulosa

Taxonomic Classification

Rank	Common harp ground beetle	Triangulate Bud Spider
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Arthropoda (Arthropods)	Arthropoda (Arthropods)
Class	Insecta (Insects)	Arachnida (Arachnids)
Order	Coleoptera (Beetles)	Araneae (Araneae)
Family	Carabidae	Theridiidae
Genus	Amara	Steatoda
Species	Amara communis	Steatoda triangulosa

Evolutionary Relationship

Common harp ground beetle and Triangulate Bud Spider share a common ancestor at the Phylum level: Arthropoda. (Arthropods)

Conservation Status

Common harp ground beetle

LC — Least Concern

Triangulate Bud Spider

LC — Least Concern

Physical Characteristics

Attribute	Common harp ground beetle	Triangulate Bud Spider
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).

Triangulate Bud Spider

Habitat

Typically found in terrestrial habitats from forests to deserts.

Range

Found across Europe (28 countries) and North America (Canada, United States).

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 7 countries:

🇧🇪 Belgium 🇨🇦 Canada 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden 🇨🇭 Switzerland 🇺🇸 United States