arran brown vs Common Metad

Erebia ligea compared with Millardia meltada

Taxonomic Classification

Rank	arran brown	Common Metad
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum	Arthropoda (節足動物)	Chordata (脊索動物)
Class	Insecta (昆虫)	Mammalia (哺乳類)
Order	Lepidoptera (チョウ目)	Rodentia (ネズミ目)
Family	Nymphalidae (Brush-footed Butterflies)	Muridae (Mice & Rats)
Genus	Erebia	Millardia
Species	Erebia ligea	Millardia meltada

Evolutionary Relationship

arran brown and Common Metad share a common ancestor at the Kingdom level: Animalia. (動物)

Conservation Status

arran brown

LC — Least Concern

Common Metad

LC — Least Concern

Physical Characteristics

Attribute	arran brown	Common Metad
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

arran brown

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (33 countries).

Common Metad

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

arran brown

アランブラウン（Erebia ligea）はユーラシアの山地・亜高山帯の林縁や草地に広く分布するタテハチョウ科の蝶で、茶褐色の翅に橙色のバンドと白斑が連なる特徴的な模様を持つ。IUCNレッドリストでは軽度懸念（LC）に分類されており、北欧からアジアにかけて安定した個体群を維持している。夏季にのみ成虫が出現し、涼冷な気候の草地・針葉樹林帯を好む高山性の蝶である。

Common Metad

The Common Metad (<em>Millardia meltada</em>) is a rodent belonging to the genus <em>Millardia</em> within the family Muridae. As a member of the Old World rats and mice, this species is typically found in diverse terrestrial and aquatic ecosystems across its range. The Common Metad is classified as Least Concern on the IUCN Red List, indicating that its populations are currently stable and not facing immediate extinction risk. Detailed biological traits such as body length, weight, and lifespan have not been widely documented for this species in available records. Its taxonomy places it within the order Rodentia, which encompasses a broad array of gnawing mammals adapted to a wide variety of ecological niches. While specific dietary habits are not well characterized in the available data, members of the genus <em>Millardia</em> are generally understood to be omnivorous, feeding on plant material and invertebrates typical of their habitat. Ongoing monitoring is important for ensuring this species maintains its current conservation standing.