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

Interested in a 2022 BugGuide gathering in New Mexico?

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

National Moth Week 2020 photos of insects and people.

Photos of insects and people from the 2019 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.

Previous events


Genus Smicronyx

ID Request -- Dodder Galls [=Smicronyx? sculpticollis??] - Smicronyx sculpticollis Curculio, I assume? - Smicronyx sordidus Curculionidae, lateral - Smicronyx Smicronyx centralis (Dietz) - Smicronyx centralis Smicronyx interruptus Blatchley - Smicronyx interruptus Curculionidae 7 - Smicronyx 160621B06 - Smicronyx Beetle - Smicronyx tesselatus
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 Curculioninae
Tribe Smicronychini
Genus Smicronyx
Synonyms and other taxonomic changes
reviewed in Anderson (1962)(1)
Explanation of Names
Smicronyx Schönherr 1843
70 spp. in our area(2)
1.4-4.0 mm(3)
Difficult genus with many of the species sexually dimorphic. To accurately determine species it is advisable to have specimens of both sexes, and in good condition. Scale pattern will vary within a species but is normally consistent enough to be a useful character.(4)
holarctic, Afrotropical, Australian; most of NA to Nicaragua(5)(2)
hosts: mostly Asteraceae and Convolvulaceae(2)
Life Cycle
Larvae are in seeds or may cause galls(2)
Works Cited
1.The weevil genus Smicronyx in America north of Mexico
Anderson D.M. 1962. Proc. U.S. Nat. Mus. 113: 185–372.
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 South Carolina (Coleoptera: Nemonychidae, Attelabidae, Brentidae, Ithyceridae, and Curculionidae).
Janet C. Ciegler. 2010. Clemson University, Clemson, S.C. 276 pp.
4.Weevils of Kansas - A Manual for Identification
Glenn Arthur Salsbury. 2000. Private/Self.
5.A world catalogue of families and genera of Curculionoidea (Insecta: Coleoptera)
Alonso-Zarazaga M.A., Lyal C.H.C. 1999. Entomopraxis, Barcelona. 315 pp.