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

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Species Cyrtobagous salviniae - Salvinia Weevil

Cyrtobagous salviniae Cyrtobagous salviniae Weevil & Jockey - Cyrtobagous salviniae Weevil & Jockey - Cyrtobagous salviniae Weevil & Jockey - Cyrtobagous salviniae Adult salvinia weevils - Cyrtobagous salviniae Weevil Unknown - Cyrtobagous salviniae Weevil Unknown - Cyrtobagous salviniae
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 Cyrtobagous
Species salviniae (Salvinia Weevil )
Synonyms and other taxonomic changes
C. singularis of authors not Hustache (misidentification)(1)
Explanation of Names
Cyrtobagous salviniae Calder & Sands 1985
2 mm
native to South America, adventive and intentionally introduced in our area (TN-FL-LA-TX)(1)
giant salvinia (Salvinia molesta, S. minima; Salviniaceae), an invasive aquatic weed (Goolsby et al. 2001)
first found in FL in 1962(2)
in 2001, imported from Australia and released in TX & LA to control S. molesta
the weevil can clear salvina infestations by 90% or more in under one year
Print References
Calder A.A., Sands D.P.A. (1985) A new Brazilian Cyrtobagous Hustache (Coleoptera: Curculionidae) introduced into Australia to control salvinia. J. Aust. Entomol. Soc. 24: 57-64.
Goolsby J.A., Tipping P.W., Center T.D., Driver F. (2001) Evidence of a new Cyrtobagous species on Salvinia minima in Florida. Southw. Entomol. 25(4): 299-301. (Full text)
Kissinger, D.G. 1966. Cyrtobagous hustache, a genus of weevils new to the United States fauna (Coleoptera: Cuculionidae: Bagoini). Coleopt. Bull. 20: 125-127.
O'Brien C.W. (1995) Curculionidae, premiere biocontrol agents (Coleoptera: Curculionidae). Mem. Ent. Soc. Wash. 14: 119-128.
Parys, K.A. and S.J. Johnson. (2013) Biological Control of Common Salvinia (Salvinia minima) in Louisiana using Cyrtobagous salviniae (Coleoptera: Curculionidae). Florida Entomologist 96(1):10-18. (BioOne)
Tipping P.W. 2004. Giant salvinia. Pp. 174-177. In: E.M. Coombs, J.K. Clark, G.L. Piper, and A.F. Cofrancesco, (eds.). Biological control of invasive plants in the United States. Oregon State University Press, Corvallis.
Tipping P.W., Center T.D. (2003) Cyrtobagous salviniae (Coleoptera: Curculionidae) successfully overwinters in Texas and Louisiana. Fla. Entomol. 86: 92-93. (Full text)
Internet References
Texas A&M AgriLife Extension. A Guide to Mass Rearing the Salvinia Weevil for Biological Control of Giant Salvinia
USDA. Field Release of the Salvinia Weevil, Cyrtobagous salviniae Calder and Sands (Curculionidae: Coleoptera) for Control of Giant Salvinia...
Works Cited
1.A Distributional Checklist of the Beetles (Coleoptera) of Florida
2.Insects and other arthropods that feed on aquatic and wetland plants
Center T.D., Dray F.A., Jubinsky G.P., Grodowitz M.J. 2002. USDA ARS, Technical Bulletin 1870. 200 pp.