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Bean weevil

Scientific Name
Acanthoscelides obtectus
Scientific Author
(Say, 1831)
Taxonomy
(Coleoptera: Chrysomelidae: Bruchinae)
Status
Exotic Species Outbreak in Australia
Reliability
High
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Diagnostic Images

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Caption
Mauritius Oct 2002 ex dried peas.
Source
Simon Hinkley & Ken Walker Museum Victoria
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Diagnostic Images (9)
Diagnostic Notes

Grey-green in colour and about 3 - 5 mm long. They have a 'tear drop' like body shape and are covered in short hairs. The wing cases are short and mottled brown with the antennae being grey and reddish. The femur of the hind leg has three tooth-like spines. They are usually found in dried kidney and haricot beans. The insect produces a sweet, "fruity" pheromone that gives cultures of newly emerged adults a pleasant smell. The grub, or larva, is whitish and hairy. The eggs are whitish and ellipsoidal, and are laid in loose groups in the holes chewed in the pod along the seam or in cracks.

Source:

See Department of Agriculture, Western Australia weblink

More Information
Author
Walker, K.
Created
21/02/2006 10:29 AEST
Last Updated
25/01/2008 11:50 AEST
Citation
Walker, K. (2006) Bean weevil (Acanthoscelides obtectus) Updated on 1/25/2008 11:50:03 AM 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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