Clover weevil vs Weevil

Sitona hispidulus compared with Sitona cylindricollis

Taxonomic Classification

Rank	Clover weevil	Weevil
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	Coleoptera (コウチュウ目)	Coleoptera (コウチュウ目)
Family same	Curculionidae	Curculionidae
Genus same	Sitona	Sitona
Species	Sitona hispidulus	Sitona cylindricollis

Evolutionary Relationship

Clover weevil and Weevil share a common ancestor at the Genus level: Sitona.

表示 Genus: Sitona

Conservation Status

Clover weevil

LC — Least Concern

Weevil

LC — Least Concern

Physical Characteristics

Attribute	Clover weevil	Weevil
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Clover weevil

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and montane grasslands and shrublands, among 5 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (8 countries), Europe (12 countries), and North America (Canada, United States).

Weevil

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Widely distributed across Asia (5 countries), Europe (10 countries), and North America (Canada, United States).

Clover weevil

The clover weevil (Sitona hispidulus) is a small herbivorous beetle in the family Curculionidae, subfamily Entiminae. Native to the Palearctic region across Europe and Asia, this species has been introduced to North America, where it is now widespread across agricultural regions. Adults and larvae feed on clovers and other legumes in the genus Trifolium and related plants. Adults feed on the leaves, creating characteristic semicircular notches along leaf margins, a feeding pattern typical of Sitona weevils. Larvae feed underground on nitrogen-fixing root nodules, which can reduce the agronomic value of legume crops by damaging the symbiotic Rhizobium bacteria. The clover weevil is consequently regarded as an agricultural pest in clover-growing regions. Adults are grey-brown and densely covered in scales, measuring about 3–5 mm in length. The species overwinters as adults in soil or leaf litter, emerging in spring to feed and reproduce. It inhabits cultivated fields, pastures, meadows, roadsides, and any habitat supporting clover and related legumes. Listed as Least Concern by the IUCN given its wide distribution and abundance.