Common Sun Beetle vs Necklace Ground Beetle

Amara aenea compared with Carabus monilis

Key Differences

• Common Sun Beetle is Least Concern while Necklace Ground Beetle is Endangered.

Taxonomic Classification

Rank	Common Sun Beetle	Necklace Ground Beetle
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Arthropoda (Arthropods)	Arthropoda (Arthropods)
Class same	Insecta (Insects)	Insecta (Insects)
Order same	Coleoptera (Beetles)	Coleoptera (Beetles)
Family same	Carabidae	Carabidae
Genus	Amara	Carabus
Species	Amara aenea	Carabus monilis

Evolutionary Relationship

Common Sun Beetle and Necklace Ground Beetle share a common ancestor at the Family level: Carabidae.

Conservation Status

Common Sun Beetle

LC — Least Concern

Necklace Ground Beetle

EN — Endangered

Physical Characteristics

Attribute	Common Sun Beetle	Necklace Ground Beetle
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Common Sun Beetle

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (7 countries) and North America (Canada, United States).

Necklace Ground Beetle

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Norway, Sweden, and Switzerland. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Common Sun Beetle

<em>Amara aenea</em>, the common sun beetle, is a carabid ground beetle in the family Carabidae, order Coleoptera. It is broadly distributed across Europe and has been introduced to North America, typically inhabiting open, sunny habitats such as arable fields, grasslands, sandy heathlands, and disturbed ground with sparse vegetation. Adults are omnivorous, feeding on seeds, small invertebrates, and plant material, and are considered important predators of weed seeds in agricultural systems. <em>Amara aenea</em> is surface-active during warm, dry conditions, typically exhibiting peak activity in late spring and summer. Like many carabid beetles, it is nocturnal and shelters under stones and debris during the day. Larvae develop in the soil, where they also feed on organic matter and small invertebrates. Biological traits including precise adult lifespan, body length measurements, and detailed prey preferences remain poorly documented at the species level. The species is assessed as Least Concern by the IUCN, reflecting its wide distribution, high adaptability to disturbed environments, and no significant known threats to global population status.

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇳🇴 Norway 🇸🇪 Sweden 🇨🇭 Switzerland