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Genus Listronotus

Annual Bluegrass Weevil - Listronotus maculicollis Beetle - Listronotus sparsus Listronotus sp - Listronotus oregonensis weevil - Listronotus appendiculatus Listronotus - Listronotus appendiculatus Snout Beetle 2 - Listronotus Curculionidae 4 - Listronotus Unknown weevil - Listronotus
Classification
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 Cyclominae (Underwater Weevils)
Tribe Listroderini
Genus Listronotus
Synonyms and other taxonomic changes
Hyperodes Jekel 1865, Lixellus LeConte 1876 Macrops Kirby 1837, Anchodemus LeConte, 1876
Explanation of Names
Listronotus Jekel 1865
Greek 'spade-backed'
Numbers
>80 spp. in our area(1)
Identification
The genus can roughly be broken down into species that are ≥5.0 mm and those smaller than 5.0 mm. The smaller species are quite uniform in appearance.(2) This genus is for the most part extremely difficult to determine to species as available key characters are very subjective, and almost all reliable species ID's require genitalic dissection. Even then there are no available illustrations of genitalic characters for the synonomized genera listed above. G. Hanley (2019) is currently attempting to match all known species with new genitalic imaging.
Range
New World: throughout NA and south to Argentina & Chile(3)
Habitat
wetlands(1)
Food
associated with a variety of plants(1)
See Also
Diamimus subsericeus
Print References
Henderson, L.S. 1939. A revision of the genus Listronotus (Curculionidae: Coleoptera). The University of Kansas Science Bulletin. 26(4): 215-337.(4)
Works Cited
1.American Beetles, Volume II: Polyphaga: Scarabaeoidea through Curculionoidea
Arnett, R.H., Jr., M. C. Thomas, P. E. Skelley and J. H. Frank. (eds.). 2002. CRC Press LLC, Boca Raton, FL.
2.Weevils of Kansas - A Manual for Identification
Glenn Arthur Salsbury. 2000. Private/Self.
3.A world catalogue of families and genera of Curculionoidea (Insecta: Coleoptera)
Alonso-Zarazaga M.A., Lyal C.H.C. 1999. Entomopraxis, Barcelona. 315 pp.
4.A revision of the genus Listronotus: I (Curculionidae: Coleoptera)
Lyman S. Henderson. 1939. The University of Kansas Science Bulletin, vol. 26, no. 4, pp. 215-337.