Tuesday, May 10, 2011


Tobacco and Biscuit Beetle, Lasioderma serricorne & Stegobium PaniceumThe Tobacco Beetle is about 2.5mm long and oval in shape, covered with small hairs which give them a silky, yellowish-brown colour. Adults are strong fliers and prefer subdued light and temperatures over 65 degrees.

The larvae stages of the Tobacco Beetle can feed on a variety of store products including tobacco, grain, cereal roducts, ginger, raisins, dates, paper, dried fish, drugs, and seeds. The female produces about 100 eggs and the entire life cycle can be complete in 45-50 days.

Biscuit Beetles are about 2-3mm long and light brown in colour. Their bodies are covered with a fine, silky hairs, and they have distinct grooves in their wing covers which can easily separate them from Tobacco Beetles.

Saw Toothed Grain Beetle, Oryzaephilus Surinamensis
The adult is a small, active, brown beetle, 2-3mm long, with a flattened body and six saw-toothed projections on each side of the thorax.

The females live from 6-10 months and deposit upwards of 250 eggs in foodstuffs. Several generations may occur each year, as the life cycle requires only 3-4 weeks during summer, when conditions are at their most favourable.

Other common beetles found in the UK are the Rice Weevil, and the Rust Rust and Confused Flour Beetles.


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