Common Sun Beetle vs Water speedwell

Amara aenea compared with Veronica anagallis-aquatica

Key Differences

Common Sun Beetle is Least Concern while Water speedwell is Vulnerable.

Taxonomic Classification

Rank	Common Sun Beetle	Water speedwell
Kingdom	Animalia (สัตว์)	Plantae (พืช)
Phylum	Arthropoda (สัตว์ขาปล้อง)	Magnoliophyta (Flowering Plants)
Class	Insecta (แมลง)	Magnoliopsida (พืชใบเลี้ยงคู่)
Order	Coleoptera (อันดับด้วง)	Lamiales (อันดับกะเพรา)
Family	Carabidae	Plantaginaceae
Genus	Amara	Veronica
Species	Amara aenea	Veronica anagallis-aquatica

Conservation Status

Common Sun Beetle

LC — Least Concern

Water speedwell

VU — Vulnerable

Physical Characteristics

Attribute	Common Sun Beetle	Water speedwell
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).

Water speedwell

Habitat

Found across multiple habitat types including tropical and subtropical grasslands and savannas, flooded grasslands and savannas, and deserts and xeric shrublands, among 6 distinct biome types spanning the Afrotropic and Neotropic realms.

Range

Widely distributed across Africa (Namibia), Asia (Japan), Europe (7 countries), North America (Canada, United States), and South America (4 countries). Currently classified as Vulnerable 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.