الفهرس 
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Abstract
1. INTRODUCTION
Stored product insects cause serious losses in weight and quality of the stored products during storage (Evans 1987). Among the stored-product beetles, Tribolium castaneum (Herbst) can be a major pest in storage of grain-based products (Campbell and Runnion 2003) and Sitophilus oryzae (L.) caused severe damage to cereal grains throughout the world (Agarwal et al., 1979; Daglish et al., 1996). These pests are major pests of stored grains and grain products in the tropics (Howe 1965).
The harmful entomofauna includes the saw-toothed grain beetle, O. surinamensis (Coleoptera: Silvanidae), which is the subject of this study. It is currently a very common pest, and one of the most frequently found pests of grain and cereal products. Compared with other pests of stored-products, this species does not feed very intensively. However, because it lives in the bottom layers of infested food products, it is particularly difficult to detect. T