Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Genus Sitona

Broad-nosed Weevil - Sitona lineellus Sitona lepidus ? - Sitona lepidus Mini hippopotamus? - Sitona lineellus Unknown weevil - Sitona lineatus Broad-nosed Weevil - Sitona Sitona? - Sitona lineatus Sitona - Sitona californius Sitona? - Sitona californius
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga
No Taxon (Series Cucujiformia)
Superfamily Curculionoidea
Family Curculionidae (Snout and Bark Beetles)
Subfamily Entiminae (Broad-nosed Weevils)
Tribe Sitonini
Genus Sitona
Synonyms and other taxonomic changes
our fauna revised in(1)
Explanation of Names
Sitona Germar 1817
Numbers
11 spp. in our area (of which about a half are non-native), 8 in Canada(2); ca. 100 spp. total(3)
Size
3-7 mm (NA spp.)
Identification
presence of flat recumbent scales on the mandibles is diagnostic
Range
holarctic, mostly Palaearctic(3)
Food
Host plants: Fabaceae; larvae are obligate feeders on the nitrifying root nodules(2)
Remarks
several spp. are economic pests of clover, alfalfa, etc.(2)
Works Cited
1.Revision of the genus Sitona (Coleoptera: Curculionidae) of North America
Bright D.E. 1994. Ann. Ent. Soc. Am. 87: 277‒306.
2.Insects and Arachnids of Canada Series, Part 25. Coleoptera, Curculionidae, Entiminae.
Donald E. Bright, Patrice Bouchard. 2008. 2008. NRC Research Press, Ottawa, Ontario, Canada.
3.Systematics of Sitonini (Coleoptera: Curculionidae: Entiminae), with a hypothesis on the evolution of feeding habits
Velázquez de Castro A.J., Alonso-Zarazaga M.Á., Outerelo R. 2007. Systematic Entomology 32: 312–331.