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Insects found in Food
Maize Weevil Beetle
Maize Weevil Beetle
Sitophilus zeamais
Appearance
Adult up to 3/16".
They are dull red-brown to nearly black and are usually marked on the back with four light reddish or yellowish spots.
Lifecycle
The female chews a small hole into a grain kernel, into which one egg is laid. A female can lay 300 to 400 eggs over a period of months.
An egg hatches in a few days into a larva, which feeds on the interior of the grain kernel. Pupation follows, with the adult beetle emerging later.
The entire life cycle takes from four to seven weeks.
Habits
The maize weevil has fully developed wings beneath its wing covers and can fly readily.
This pest destroys stored crops such as corn, wheat, and rice.
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