Black Cutworm vs Rootless Duckweed

Agrotis ipsilon compared with Wolffia arrhiza

Key Differences

• Black Cutworm is Least Concern while Rootless Duckweed is Endangered.

Taxonomic Classification

Rank	Black Cutworm	Rootless Duckweed
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Arthropoda (Arthropods)	Magnoliophyta (Flowering Plants)
Class	Insecta (Insects)	Liliopsida (Monocots)
Order	Lepidoptera (Butterflies & Moths)	Alismatales (Alismatales)
Family	Noctuidae	Araceae
Genus	Agrotis	Wolffia
Species	Agrotis ipsilon	Wolffia arrhiza

Conservation Status

Black Cutworm

LC — Least Concern

Rootless Duckweed

EN — Endangered

Physical Characteristics

Attribute	Black Cutworm	Rootless Duckweed
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black Cutworm

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 6 distinct biome types spanning the Afrotropic and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (7 countries), Asia (Taiwan), Europe (5 countries), North America (Canada, United States), and South America (Chile).

Rootless Duckweed

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, temperate broadleaf and mixed forests, and temperate coniferous forests, among 4 distinct biome types spanning the Indomalayan and Oceanian and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Japan), Europe (10 countries), North America (Canada), and South America (Brazil). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Black Cutworm

The Black Cutworm (Agrotis ipsilon) is a species in the genus Agrotis. It is currently classified as Least Concern on the IUCN Red List. Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 6 distinct biome types spanning the. Widely distributed across Africa (7 countries), Asia (Taiwan), Europe (5 countries), North America (Canada, United Stat...

Shared Countries

Both species can be found in 5 countries:

🇧🇪 Belgium 🇨🇦 Canada 🇳🇴 Norway 🇵🇹 Portugal 🇸🇪 Sweden