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Species Haplorhynchites aeneus - Head-clipping Weevil

Tooth nosed snout beetle - Haplorhynchites aeneus Silphium Weevil - Haplorhynchites aeneus Black weevil with yellow pollen - Haplorhynchites?? - Haplorhynchites aeneus Haplorhynchites aeneus Weevil - Haplorhynchites aeneus Haplorhynchites aeneus - male - female Haplorhynchites aeneus Black Weevils - Haplorhynchites aeneus
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 Attelabidae (Leaf Rolling Weevils)
Subfamily Rhynchitinae (Leaf and Bud Weevils)
Tribe Rhynchitini
Genus Haplorhynchites
Species aeneus (Head-clipping Weevil)
Other Common Names
Sunflower Headclipping Weevil
Synonyms and other taxonomic changes
Haplorhynchites aeneus (Boheman)
Orig. Comb: Rhynchites aeneus Boheman 1829
Explanation of Names
aeneus = 'bronze-colored'
Size
3.9-6.6 mm(1)
Identification
Black, with faint bronze luster and often dull reddish-brown elytra (in teneral specimens); body covered with long dark setae; fairly constant morphologically over its range and easily separated by color & luster(1)(2)
Range
throughout e. NA north to ON-SK (the only eastern sp. of the genus)(1)(3)
Life Cycle

Det. James C. Trager, 2010
Remarks
the most common and widespread species of the genus(2)
See Also

H. pseudomexicanus (AZ, TX) can be distinguished by the bluish luster, smaller interval punctures, and shorter rostrum sex for sex(2)
Print References
Hamilton, R.W. 1973. Observations on the biology of Haplorhynchites aeneus (Boheman) (Coleoptera: Rhynchitidae). The Coleopterists Bulletin, 27(2): 83-85.
Works Cited
1.Beetles of Eastern North America
Arthur V. Evans. 2014. Princeton University Press.
2.The genus Haplorhynchites (Coleoptera: Rhynchitidae) in America north of Mexico
Hamilton R.W. 1974. Ann. Ent. Soc. Am. 67(5): 787-794.
3.Checklist of beetles (Coleoptera) of Canada and Alaska. Second edition
Bousquet Y., Bouchard P., Davies A.E., Sikes D.S. 2013. ZooKeys 360: 1–402.