Bristly Rose Sawfly vs Common Sawfly

Cladius pectinicornis compared with Cladius grandis

Key Differences

• Bristly Rose Sawfly is Not Evaluated while Common Sawfly is Near Threatened.

Taxonomic Classification

Rank	Bristly Rose Sawfly	Common Sawfly
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Arthropoda (節足動物)	Arthropoda (節足動物)
Class same	Insecta (昆虫)	Insecta (昆虫)
Order same	Hymenoptera (ハチ目)	Hymenoptera (ハチ目)
Family same	Tenthredinidae	Tenthredinidae
Genus same	Cladius	Cladius
Species	Cladius pectinicornis	Cladius grandis

Evolutionary Relationship

Bristly Rose Sawfly and Common Sawfly share a common ancestor at the Genus level: Cladius.

Conservation Status

Bristly Rose Sawfly

NE — Not Evaluated

Common Sawfly

NT — Near Threatened

Physical Characteristics

Attribute	Bristly Rose Sawfly	Common Sawfly
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bristly Rose Sawfly

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (4 countries) and North America (Canada, United States).

Common Sawfly

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (4 countries) and North America (Canada, United States). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Bristly Rose Sawfly

The Bristly Rose Sawfly (Cladius pectinicornis) is a species in the genus Cladius. Typically found in virtually all terrestrial and freshwater habitats.

Common Sawfly

<em>Cladius grandis</em> is a sawfly in the family Tenthredinidae, with a Holarctic distribution spanning Europe and North America, documented from Canada, the United States, and multiple European countries. The species is primarily associated with rose family shrubs and trees, with larvae feeding externally on the leaves of cultivated and wild roses (<em>Rosa</em> spp.) as well as related plants. Larvae are pale green and slug-like in appearance, resembling the related rose slug sawfly larvae, and feed by skeletonizing leaves, stripping the upper epidermis and leaving a characteristic translucent "window" pattern that later turns brown. Infestations can cause cosmetic damage to cultivated roses and reduce the vigor of heavily attacked plants. Adults are small, black, wasp-like insects. The species is assessed as Near Threatened on the IUCN Red List, though the reasons for this designation and supporting population trend data specific to this species are not extensively documented in widely available sources. It typically produces multiple generations per year under favorable conditions in temperate climates. Pupation occurs in the soil, and overwintering takes place as prepupae or pupae. Biological traits such as average lifespan, body measurements, and comprehensive dietary data beyond host plant leaf tissue remain poorly documented in standardized ecological databases.

Shared Countries

Both species can be found in 6 countries:

🇧🇪 Belgium 🇨🇦 Canada 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden 🇺🇸 United States