Centric diatom vs small tortoiseshell

Cyclotella pseudostelligera compared with Aglais urticae

Key Differences

Centric diatom is Not Evaluated while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	Centric diatom	small tortoiseshell
Kingdom	Chromista (Chromista)	Animalia (Animals)
Phylum	Ochrophyta (Ochrophyta)	Arthropoda (Arthropods)
Class	Bacillariophyceae (Bacillariophyceae)	Insecta (Insects)
Order	Thalassiosirales (Thalassiosirales)	Lepidoptera (Butterflies & Moths)
Family	Stephanodiscaceae	Nymphalidae (Brush-footed Butterflies)
Genus	Cyclotella	Aglais
Species	Cyclotella pseudostelligera	Aglais urticae

Conservation Status

Centric diatom

NE — Not Evaluated

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	Centric diatom	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Centric diatom

Habitat

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

Range

Found in United States.

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.

Centric diatom

The Centric Diatom (Cyclotella pseudostelligera) is a species in the genus Cyclotella. Found in United States.

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.