Species Sitona hispidulus - Clover Weevil

Classification · Other Common Names · Size · Identification · Range · Habitat · Season · Food · Life Cycle · Internet References · Works Cited

Little Brown Snout Beetle - Sitona hispidulus

Brown beetle with dark spots - Sitona hispidulus

Classification

Kingdom Animalia (Animals)

Phylum Arthropoda (Arthropods)

Class Insecta (Insects)

Order Coleoptera (Beetles)

Suborder Polyphaga (Water, Rove, Scarab, Longhorn, Leaf and Snout Beetles)

Superfamily Curculionoidea (Snout and Bark Beetles)

Family Curculionidae (Snout and Bark Beetles)

Subfamily Entiminae (Broad-nosed Weevils)

Tribe Sitonini

Genus Sitona

Species hispidulus (Clover Weevil)

Other Common Names

Clover Root Curculio

Size

3-5 mm

Identification

the only Sitona species with erect hairs on each elytral interstria; eyes flatter than in similar species(1)

Range

native to, and widespread throughout, Eurasia; adventive in NA (introduced ca. 1875, NJ)(2) and occurs across Canada, the continental US, and e. Mexico(3)(1) (US distribution map)

Habitat

fields, pastures, meadows

Season

adults are active in spring and again in fall after the first frost, which causes them to emerge from their summer aestivation (resting period)

larvae feed during summer

Food

on clover, alfalfa & other forage legumes(1)

Life Cycle

eggs are laid on soil in spring; larvae hatch and feed underground; pupation and adult emergence takes place in late summer; overwinters as adults in soil or leaf litter

Internet References

Fact sheet

Works Cited

1.	Insects and Arachnids of Canada Series, Part 25. Coleoptera, Curculionidae, Entiminae. By Donald E. Bright, Patrice Bouchard. 2008.

2.	The weevils (Coleoptera: Curculionoidea) of the Maritime Provinces of Canada, II: New records from Nova Scotia... By C.G. Majka, R.S. Anderson, & D.B. McCorquodale

3.	Weevils (Coleoptera: Curculionoidea, Excluding Scolytinae and Platypodinae) of the Yukon By R.S. Anderson

Contributed by tom murray on 12 April, 2006 - 7:15am
Additional contributions by Beatriz Moisset, Robin McLeod, Boris Bueche, v belov
Last updated 29 March, 2012 - 5:02pm

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