Cleonis pigra, the sluggish weevil or large thistle weevil, is a weevil species recorded in Britain and native to Eurasia. It was introduced into North America to help control creeping thistle.[1] This species develops in the roots of plants in the family Asteraceae.[2]
It appears spelled different ways in the literature: Cleonis piger, Cleonus piger, Cleonus pigra,[1] but the correct spelling under ICZN Article 31.2 is Cleonis pigra[3]
It is identified by double V-pattern elytra and a rostrum with three sulci.[1]
Cleonis pigra, the sluggish weevil or large thistle weevil, is a weevil species recorded in Britain and native to Eurasia. It was introduced into North America to help control creeping thistle. This species develops in the roots of plants in the family Asteraceae.
It appears spelled different ways in the literature: Cleonis piger, Cleonus piger, Cleonus pigra, but the correct spelling under ICZN Article 31.2 is Cleonis pigra
It is identified by double V-pattern elytra and a rostrum with three sulci.
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