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Genus Sitona

Clover Weevil - Sitona hispidulus Weevil - Sitona lepidus Clover Weevil - Sitona hispidulus Sitona lineellus Pea Leaf Weevil? - Sitona lineatus Weevil IMG_3959 - Sitona cylindricollis Sitona hispidulus Weevil - broad-nosed?  - Sitona lepidus
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga (Water, Rove, Scarab, Long-horned, Leaf and Snout Beetles)
No Taxon (Series Cucujiformia)
Superfamily Curculionoidea (Snout and Bark Beetles)
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
11 spp. in our area (of which about a half are non-native), 8 in Canada(2); ca. 100 spp. total(3)
3-7 mm (NA spp.)
presence of flat recumbent scales on the mandibles is diagnostic
holarctic, mostly Palaearctic(3)
Host plants: Fabaceae; larvae are obligate feeders on the nitrifying root nodules(2)
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. Entomol. 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.