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

Spring 2021 gathering in Louisiana, April 28-May 2. Here's how to add your images.

National Moth Week 2020 photos of insects and people.

Photos of 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


Species Lissorhoptrus oryzophilus - Rice Water Weevil

Lissorhoptrus - Lissorhoptrus oryzophilus - female weevil - Lissorhoptrus oryzophilus - female Weevil #25 - Lissorhoptrus oryzophilus Beetle - Lissorhoptrus oryzophilus Lissorhoptrus oryzophilus Kuschel - Lissorhoptrus oryzophilus Lissorhoptrus oryzophilus tiny weevil - Lissorhoptrus oryzophilus Louisiana Rice Weevil - Lissorhoptrus oryzophilus
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 Brachyceridae
Subfamily Erirhininae (Marsh Weevils)
Subtribe Stenopelmina
Genus Lissorhoptrus (Rice Water Weevils)
Species oryzophilus (Rice Water Weevil)
Synonyms and other taxonomic changes
simplex auct. nec Say
Explanation of Names
Lissorhoptrus oryzophilus Kuschel 1952
2.0-3.7 mm(1)
e US, CA; Mexico, Cuba; Eurasia(1)
hosts: many Poaceae and Cyperaceae, incl. rice(1)
Life Cycle
adults are strong swimmers(1)
Native to North America, has spread to Asia and Europe where it is a pest of cultivated rice(1)
See Also
very similar to (and often misidentified as) L. simplex (Say)(1)
Works Cited
1.Revision of the “Rice Water Weevil” Genus Lissorhoptrus Leconte (Coleoptera: Curculionidae) in North America North of Mexico
Charles W. O'Brien and Muhammad Haseeb. 2014. The Coleopterists Bulletin 68(2): 163-186.