Sitona obsoletus (Gmelin, 1790)
(a weevil)

Taxonomic hierarchy:

Species	Sitona obsoletus (a weevil)
Genus	Sitona (a genus of weevils)
Tribe	Sitonini (a group of weevils)
Subfamily	ENTIMINAE (a subfamily of weevils)
Family	CURCULIONIDAE (weevils)
Division	Gonatoceri (true weevils)
Superfamily	CURCULIONOIDEA (weevils and allied beetles)
Series	Cucujiformia (a group of beetles)
Suborder	POLYPHAGA (mainly terrestrial beetles)
Order	COLEOPTERA (beetles)
Division	Endopterygota (bees, beetles, flies, moths and other insects with wings developing internally)
Infraclass	Neoptera (bees, beetles, flies, grasshoppers, moths and other advanced insects)
Subclass	PTERYGOTA (bees, beetles, dragonflies, flies, grasshoppers, moths and other winged insects)
Class	INSECTA (true insects)
Subphylum	HEXAPODA (insects and other 6-legged organisms)
Phylum	ARTHROPODA (arthropods)
Superphylum	ECDYSOZOA (skin shedders)
Clade	Bilateria (bilaterally symmetrical animals)
Subkingdom	EUMETAZOA (metazoans)
Kingdom	ANIMALIA (animals)
Domain	Eukaryota (eukaryotes)
Life	BIOTA (living things)

Sitona obsoletus is also a member of:
water beetles - water beetles (via Curculionidae)
Invertebrates - Invertebrates (via Arthropoda)

Identification Works

	Author	Year	Title	Source
	Phillips, C.B. & Barratt, B.I.P.	2004	A guide to assist detection of newly arrived Sitona species (Coleoptera: Curculionidae) in New Zealand and Australia	Phillips, C.B. & Barratt, B.I.P., 2004. A guide to assist detection of newly arrived Sitona species (Coleoptera: Curculionidae) in New Zealand and Australia, 12pp, Proceedings of the 8th Australasian Grassland Invertebrate Ecology Conference

Sitona obsoletus (a weevil) may also be included in identification literature listed under the following higher taxa:

Sitona
(a genus of weevils)

ENTIMINAE
(a subfamily of weevils)

CURCULIONIDAE
(weevils)

CURCULIONOIDEA
(weevils and allied beetles)

COLEOPTERA
(beetles)

INSECTA
(true insects)

HEXAPODA
(insects and other 6-legged organisms)

ARTHROPODA
(arthropods)

ANIMALIA
(animals)

Eukaryota
(eukaryotes)

BIOTA
(living things)

water beetles
(water beetles)

NBN (data.nbn.org.uk) has a distribution map for Sitona obsoletus (a weevil)

BioInfo (www.bioinfo.org.uk) has 4 host/parasite/foodplant and/or other relationships for Sitona obsoletus (a weevil)

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Taxonomic hierarchy:

Sitona obsoletus is also a member of:

Identification Works

BioImages - Virtual Field-Guide (UK)