Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Upcoming Events

Information, insects and people from the 2019 BugGuide Gathering in Louisiana, July 25-27

Discussion, 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

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa


Genus Idiostethus

Curculionidae on Hydrophyllum virginianum, lateral  - Idiostethus tubulatus Curculionidae on Hydrophyllum virginianum, dorsal  - Idiostethus tubulatus Weevil - Idiostethus tubulatus Curculionidae, lateral - Idiostethus tubulatus Idiostethus dispersus Casey - Idiostethus dispersus Idiostethus subcalvus  (LeConte) - Idiostethus subcalvus Baridinae (Flower Weevil)  - Idiostethus tubulatus Curculiionidae, dorsal - Idiostethus tubulatus
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 Baridinae (Flower Weevils)
Tribe Apostasimerini
Genus Idiostethus
Synonyms and other taxonomic changes
all but two of our nominal spp. were described by Casey from single locations and are of questionable validity(1)
Explanation of Names
Idiostethus Casey 1892
16 described spp. in our area (actual number probably much smaller)(2)
e. NA(2)
adults associated with various flowers(2)
larvae may be associated with orchids(2)
Works Cited
1.Weevils of South Carolina (Coleoptera: Nemonychidae, Attelabidae, Brentidae, Ithyceridae, and Curculionidae).
Janet C. Ciegler. 2010. Clemson University, Clemson, S.C. 276 pp.
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.