November 15, 2018

Pest Guide: Weevil

Lixus angustatus

A weevil is any beetle from the Curculionoidea superfamily. They are usually small, less than 6 millimetres (0.24 in), and herbivorous. There are over 60,000 species in several families, mostly in the family Curculionidae (the true weevils). Some other beetles, although not closely related, bear the name “weevil”, such as the biscuit weevil (Stegobium paniceum), which belongs to the family Anobiidae. Many weevils are damaging to crops. The grain or wheat weevil (Sitophilus granarius) damages stored grain. The boll weevil (Anthonomus grandis) attacks cotton crops. It lays its eggs inside cotton bolls, and the young weevils eat their way out.


Weevils are often found in dry foods including nuts and seeds, cereal and grain products, such as pancake mix. In the domestic setting, they are most likely to be observed when a bag of flour is opened.



Control / Prevention

Food products need to be inspected for signs of infestation, including cereals, and packaged dried foods.


They are a major pest in the agricultural industry and are highly resistant to insecticides.

Size Color Legs Shape Antenanae
1/8 of an inch Brown, Gray, Black 6 oval True

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