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Upcoming Events

Discussion of 2018 gathering

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

Photos from the 2010 Workshop in Grinnell, Iowa

Photos from the 2009 gathering in Washington


Species Neochetina eichhorniae - Mottled Waterhyacinth Weevil

Neochetina eichhorniae Neochetina eichhorniae Water Hyacinth Weevil - Neochetina eichhorniae ? - Neochetina eichhorniae 032312Weevil1 - Neochetina eichhorniae Curculionid - Neochetina eichhorniae Neochetina eichhorniae - male - female Neochetina eichhorniae Insect - Neochetina eichhorniae
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 Neochetina (Waterhyacinth Weevils)
Species eichhorniae (Mottled Waterhyacinth Weevil)
Explanation of Names
Neochetina eichhorniae Warner 1970
♂ 3.4-4.5 mm, ♀ 3.8-4.9 mm(1)
se US (TX-LA, FL) (2), native to South America, introduced in FL (1972)(3)
host: Water Hyacinth (Eichhornia crassipes, Pontederiaceae)(3)
Introduced intentionally in 1972 to combat Eichhornia crassipes; native to Argentina and bordering countries
Print References
Firehun et al. 2015. Adaptability of two weevils (Neochetina bruchi and Neochetina eichhorniae) with potential to control water hyacinth in the Rift Valley of Ethiopia. Crop Protection 76: 75–82. (Abstract)