Brown Diving Beetle vs Common eyebright

Agabus brunneus compared with Euphrasia nemorosa

Key Differences

• Brown Diving Beetle is Extinct while Common eyebright is Least Concern.

Taxonomic Classification

Rank	Brown Diving Beetle	Common eyebright
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Arthropoda (Arthropods)	Magnoliophyta (Flowering Plants)
Class	Insecta (Insects)	Magnoliopsida (Dicots)
Order	Coleoptera (Beetles)	Lamiales (Lamiales)
Family	Dytiscidae	Orobanchaceae
Genus	Agabus	Euphrasia
Species	Agabus brunneus	Euphrasia nemorosa

Conservation Status

Brown Diving Beetle

EX — Extinct

Common eyebright

LC — Least Concern

Physical Characteristics

Attribute	Brown Diving Beetle	Common eyebright
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brown Diving Beetle

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium and Sweden.

Common eyebright

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Found across Europe (6 countries) and North America (Canada, United States).

Brown Diving Beetle

The Brown Diving Beetle (Agabus brunneus) is a species in the genus Agabus. It is currently classified as Extinct on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

Common eyebright

The Common Eyebright (<em>Euphrasia nemorosa</em>) is a small annual plant belonging to the genus Euphrasia within the family Orobanchaceae. This species is a hemiparasite, typically attaching its roots to the roots of neighbouring grasses and other plants to obtain water and nutrients, while also performing photosynthesis. It is often found in diverse terrestrial habitats ranging from tropical forests to temperate regions, including grasslands, heathlands, and woodland margins. Geographically, <em>Euphrasia nemorosa</em> is distributed across Europe, with confirmed records in countries including Belgium, Denmark, Finland, and France, as well as presence in North America in Canada and the United States. The species is assessed as Least Concern on the IUCN Red List, indicating a stable global population without immediate threat of extinction. Biological traits of this species remain poorly documented in the scientific literature, including specific data on lifespan, body size, and diet. The common name "eyebright" reflects its historical use in herbal medicine for treating eye ailments, though this application is not supported by modern clinical evidence.

Shared Countries

Both species can be found in 2 countries:

🇧🇪 Belgium 🇸🇪 Sweden