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Upcoming Events

Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

National Moth Week was July 23-31, 2022! See moth submissions.

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

Photos of insects and people from the 2019 gathering in Louisiana, July 25-27

Photos of insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Previous events


Species Cylindrocopturus adspersus - Sunflower Stem Weevil

Cylindrocopturus adspersus Utah Weevil - Cylindrocopturus adspersus Weevil - Cylindrocopturus adspersus cattail weevil - Cylindrocopturus adspersus Cylindrocopturus adspersus (LeConte) - Cylindrocopturus adspersus Cylindrocopturus operculatus? - Cylindrocopturus adspersus Cylindrocopturus adspersus Weevil 3.2mm - Cylindrocopturus adspersus
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 Conoderinae
Tribe Zygopini (Twig and Stem Weevils)
Genus Cylindrocopturus
Species adspersus (Sunflower Stem Weevil)
Synonyms and other taxonomic changes
Cylindrocopturus adspersus (LeConte)
Orig. Comb: Copturus adspersus LeConte 1816
CA-TX-NE-CO / BJ (1)(2)
Life Cycle
a key sunflower pest on the western High Plains since 1995 (2)
"things under that name [C. adspersus] probably represent more than one species" --H.A. Hespenheide, pers. comm. to =v= 9.ii.2012
Internet References
Type - MCZ, Harvard
Fact Sheet - Armstrong et al., CSU (2)