Brown Cup vs Common Sun Beetle

Rutstroemia firma compared with Amara aenea

Taxonomic Classification

Rank	Brown Cup	Common Sun Beetle
Kingdom	Fungi (грибы)	Animalia (животные)
Phylum	Ascomycota (аскомицеты)	Arthropoda (членистоногие)
Class	Leotiomycetes (Леоциомицеты)	Insecta (насекомые)
Order	Helotiales (Гелоциевые)	Coleoptera (жесткокрылые)
Family	Rutstroemiaceae	Carabidae
Genus	Rutstroemia	Amara
Species	Rutstroemia firma	Amara aenea

Conservation Status

Brown Cup

LC — Least Concern

Common Sun Beetle

LC — Least Concern

Physical Characteristics

Attribute	Brown Cup	Common Sun Beetle
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brown Cup

Habitat

Native to Europe and South America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium, Brazil, Denmark, Norway, and Sweden.

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).

Brown Cup

The Brown Cup (Rutstroemia firma) is a species in the genus Rutstroemia. It is currently classified as Least Concern on the IUCN Red List. Native to Europe and South America, inhabiting ecosystems characteristic of the region.

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.