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Genus Listronotus

Listronotus sparsus Listronotus punctiger 923C52 - Listronotus Requesting Weevil ID - Listronotus Listronotus Listronotus ? - Listronotus Listronotus Listronotus
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga
No Taxon (Series Cucujiformia)
Superfamily Curculionoidea
Family Curculionidae (Snout and Bark Beetles)
Subfamily Cyclominae
Tribe Listroderini
Genus Listronotus
Synonyms and other taxonomic changes
Hyperodes Jekel 1865, Lixellus LeConte 1876, Macrops Kirby 1837, Anchodemus LeConte 1876
revised in (1)
Explanation of Names
Listronotus Jekel 1865
Greek 'spade-backed'
Numbers
>80 spp. in our area(2)
Identification
The genus can roughly be broken down into species that are >5.0 mm and smaller ones. The smaller spp. are quite uniform in appearance.(3) Species identification tends to be extremely difficult (key characters being subjective) and usually require dissection. Even then there are no available genitalia illustrations for the synonomized genera. G. Hanley (2020) is attempting to match all known species with new genitalic imaging. If you have a series of specimens and you can spare a few, Guy can dissect for ID... Photos can rarely be taken to species with any confidence.

Keys (use with caution):
(1), (4), (5)
Regional keys: (6), (7)
Range
New World: throughout NA and south to Argentina & Chile(8)
Habitat
wetlands(2)
Print References
Morrone J.J., Marvaldi A.E., O'Brien C.W. (1995) Lixellus LeConte, a new synonym of Listronotus Jekel (Coleoptera: Curculionidae). Ent. News 106: 108–112.
Works Cited
1.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.
2.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.
3.Weevils of Kansas - A Manual for Identification
Glenn Arthur Salsbury. 2000. Private/Self.
4.The Larger (4.5+ mm.) Listronotus of America, North of Mexico (Cylindrorhininae, Curculionidae, Coleoptera)
CW O'Brien. 1981. Transactions of the American Entomological Society, 107(1/2), 69–123.
5.New species of Hyperodes Jekel and a key to the Nearctic species of the genus (Coleoptera: Curculionidae)
WD Stockton. 1963. Bulletin of the Southern California Academy of Sciences, 62: 140-149.
6.Weevils of South Carolina (Coleoptera: Nemonychidae, Attelabidae, Brentidae, Ithyceridae, and Curculionidae).
Janet C. Ciegler. 2010. Clemson University, Clemson, S.C. 276 pp.
7.The Beetles of Northeastern North America, Vol. 1 and 2.
Downie, N.M., and R.H. Arnett. 1996. The Sandhill Crane Press, Gainesville, FL.
8.A world catalogue of families and genera of Curculionoidea (Insecta: Coleoptera)
Alonso-Zarazaga M.A., Lyal C.H.C. 1999. Entomopraxis, Barcelona. 315 pp.