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vegetable weevil

Scientific Name
Listroderes costirostris obliquus
Scientific Author
Klug, 1829
Taxonomy
(Coleoptera: Curculionidae: Brachycerinae: Rhytirrhinini)
Status
Exotic Species Establishment in Australia
Reliability
High
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Diagnostic Images

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Caption
Gulfport, Mississippi, United States, April 1925, M. M. High
Source
Sarah McCaffrey Museum Victoria
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Diagnostic Images (10)
Diagnostic Notes
Listroderes contains 38 species endemic to South America. It is readily distinguished from numerous South American Rhytirrhinini genera by the body and appendages covered by semicircular to obovate scales, usually with longitudinal striation and

more or less erect setae.

These weevils vary in size from 5.5 mm to 13.0 mm; have a massive rostrum that is no more than 1.5–1.8 times as long as wide and usually is shorter than the pronotum; the pronotum is subquadrate to transverse, and the elytron is usually with a subapical tubercle.

Listroderes costirostris is widespread in South America (Argentina, Bolivia, Brazil, Chile, Paraguay and Uruguay); its original distribution range probably corresponded to the semi-arid lowlands of Chaco. It was accidentally introduced into the USA (including Hawaii), Easter Island, Australia (including Tasmania), New Zealand, South Africa, East Asia (Japan, Korea, Taiwan and the West Mediterranean region (Spain, including the Canary Islands and Balearic Islands).

Listroderes costirostris is extremely polyphagous, feeding on a wide range of cultivated and wild plants, affecting all parts of the host plant at both the larval and adult stages.
More Information
Specimen Contact
Museum Victoria
Author
McCaffrey, Sarah & Ken Walker
Created
29/03/2012 03:02 AEST
Last Updated
16/04/2012 14:03 AEST
Citation
McCaffrey, Sarah & Ken Walker (2012) vegetable weevil (Listroderes costirostris obliquus) Updated on 4/16/2012 2:03:24 PM Available online: PaDIL - http://www.padil.gov.au.
Image Use
Free for use under the Creative Commons Attribution 3.0 Australia License

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