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Insects found in Food
Grain Weevil
Grain Weevil
Sitophilus granarius
Appearance
Adult – 1/16"–1/8" in length. Oval indentations in thorax. Black–brown colour. Cannot fly (fused elytra). Rostrum (snout).
Larva – usually hidden within grain where it pupates. Legless. Prefers wheat and rye but will infest other cereals.
Lifecycle
30 days at 30°C. Normally 8–16 weeks. Can develop at 11°C.
Habits
A pest of grain. Newly emerged adults leave a characteristic emergence hole in the grain.
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