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Seeing red: A review of the use of near-infrared spectroscopy (NIRS) in entomology
Near-infrared spectroscopy (NIRS) is a rapid, noninvasive and cheap method of profiling the chemical composition of a broad range of sample types. Over the past two decades, it has been used in numerous entomological applications, ranging from taxonomy and metabolomic profiling to the prediction of insect age and sex. This review provides a perspective on the historical and contemporary applications of NIRS for entomology. Two areas that show particular promise are the detection and identification of insects infesting stored food products, and the rapid, low-cost and non-lethal profiling of cuticular hydrocarbons of individual insects.