Sawtoothed grain beetle, Oryzaephilus surinamensis (L.) (Coleoptera: Silvanidae), is a secondary pest of stored products and one of the serious insect pests of cereal grains, commodities and packaged food throughout the world. However, this species is a concern beyond cereal grains, what may be differentially affected by temperature. Therefore, insect developmental time, larva and pupa survival, and adult emergence of O. surinamensis were assessed on different substrates (rice, sesame and date palm) at different temperatures (20, 25, 30 and 35 °C and 65% r.h). The substrate loss incurred by this insect infestation was also recorded. The larval stage was the main determinant for the overall developmental time of the sawtoothed grain beetle, regardless of the substrate and temperature tested. Adult emergence was affected by substrate (F_2,48 = 4.50, P = 0.02) and particularly temperature (F_3,48 = 24.94, P < 0.001), but not their interaction (F_6,48 = 0.40, P = 0.87), exhibiting little variation until reaching 30 °C, but with a quick decline at 35 °C. The performance of the insects in rice was better, and worse in dry date. Furthermore, the survival was inversely related to substrate loss, regardless of the substrate used for rearing the sawtoothed grain beetle. Thus, substrate and temperature range are major determinants of sawtoothed grain beetle infestation with consequences for this species management.

锯齿状粮食甲虫，Oryzaephilus surinamensis (L.) (鞘翅目：Silvanidae)，是世界粮食、商品和包装食品的主要害虫之一，是储藏产品的次生害虫。然而，这个物种是谷物之外的一个问题，它可能会受到温度的不同影响。因此，O. surinamensis 的昆虫发育时间、幼虫和蛹的存活以及成虫的​​出现在不同温度（20、25、30 和 35°C 和 65% 相对湿度）下对不同基质（大米、芝麻和椰枣）进行了评估。还记录了由这种昆虫侵扰引起的基质损失。无论测试的基质和温度如何，幼虫阶段是锯齿状甲虫整体发育时间的主要决定因素。成虫出现受底物 (F _2,48  = 4.50, P  = 0.02) 和特别是温度 (F _3,48  = 24.94, P  < 0.001) 的影响，但不受它们的相互作用 (F _6,48  = 0.40, P = 0.87)，在达到 30 °C 之前几乎没有变化，但在 35 °C 时迅速下降。昆虫在水稻中的表现较好，在干枣中表现较差。此外，无论用于饲养锯齿状甲虫的基质如何，存活率都与基质损失成反比。因此，底物和温度范围是锯齿状甲虫侵染的主要决定因素，对这种物种管理产生影响。