Imported currantworm vs willow sawfly

Nematus ribesii compared with Nematus salicis

Key Differences

• Imported currantworm is Least Concern while willow sawfly is Near Threatened.

Taxonomic Classification

Rank	Imported currantworm	willow sawfly
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Arthropoda (Arthropods)	Arthropoda (Arthropods)
Class same	Insecta (Insects)	Insecta (Insects)
Order same	Hymenoptera (Ants, Bees & Wasps)	Hymenoptera (Ants, Bees & Wasps)
Family same	Tenthredinidae	Tenthredinidae
Genus same	Nematus	Nematus
Species	Nematus ribesii	Nematus salicis

Evolutionary Relationship

Imported currantworm and willow sawfly share a common ancestor at the Genus level: Nematus.

Conservation Status

Imported currantworm

LC — Least Concern

willow sawfly

NT — Near Threatened

Physical Characteristics

Attribute	Imported currantworm	willow sawfly
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Imported currantworm

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Iceland, Norway, and United States.

willow sawfly

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Norway, and United States. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Shared Countries

Both species can be found in 3 countries:

🇧🇪 Belgium 🇳🇴 Norway 🇺🇸 United States