Cleonis pigra

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]

Cleonis pigra
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Infraorder: Cucujiformia
Family: Curculionidae
Genus: Cleonis
Species:
C. pigra
Binomial name
Cleonis pigra
Synonyms
  • Cleonus piger Scopoli, 1763
  • Curculio centaureae Allioni, 1766
  • Curculio sulcirostris Linnaeus, 1767
  • Curculio transversofasciatus Goeze, 1777
  • Cleonus indicus Fahraeus, 1842
  • Bothynoderes caucasicus Chevrolat, 1873

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]

close-up face

References
  1. bugguide.net
  2. Skuhrovec, J., Volovnik, S., Gosik, R., Stejskal, R., and Trnka, F. Cleonis pigra (Scopoli, 1763) (Coleoptera: Curculionidae: Lixinae): morphological re-description of the immature stages, keys, tribal comparisons and biology // Insects, 2019, 10 (9): 325 (1–25) (with) — https://www.mdpi.com/2075-4450/10/10/325/pdf
  3. ICZN Online

Further reading
  • Lobl, I.; Smetana, A., eds. (2013). Catalogue of Palaearctic Coleoptera, Volume 7: Curculionoidea I. Apollo Books. ISBN 978-90-04-26093-1.
  • Lobl, I.; Smetana, A., eds. (2013). Catalogue of Palaearctic Coleoptera, Volume 8: Curculionoidea II. Apollo Books. ISBN 978-90-04-25916-4.


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