Onion Downy Mildew vs small tortoiseshell

Peronospora destructor compared with Aglais urticae

Key Differences

• Onion Downy Mildew is Not Evaluated while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	Onion Downy Mildew	small tortoiseshell
Kingdom	Chromista (Chromista)	Animalia (Animals)
Phylum	Oomycota (Oomycetes)	Arthropoda (Arthropods)
Class	Peronosporea (Peronosporea)	Insecta (Insects)
Order	Peronosporales (Peronosporales)	Lepidoptera (Butterflies & Moths)
Family	Peronosporaceae	Nymphalidae (Brush-footed Butterflies)
Genus	Peronospora	Aglais
Species	Peronospora destructor	Aglais urticae

Conservation Status

Onion Downy Mildew

NE — Not Evaluated

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	Onion Downy Mildew	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Onion Downy Mildew

Habitat

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

Range

Widely distributed across Europe (4 countries), North America (United States), and South America (Brazil).

small tortoiseshell

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (41 countries). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

small tortoiseshell

small tortoiseshell (Aglais urticae) is classified as Near Threatened (NT) on the IUCN Red List. Close to qualifying as threatened, with populations that may become vulnerable without conservation action.

Shared Countries

Both species can be found in 4 countries:

🇱🇹 Lithuania 🇳🇴 Norway 🇵🇱 Poland 🇸🇪 Sweden