The sawtoothed grain beetle, Oryzaephilus surinamensis, is a worldwide pest of stored grains and dry foodstuffs, but good attractants for this pest to be used as part of a monitoring program are lacking. Investigations were carried out using release-recapture bioassays and GC-MS analysis of volatile compounds. The following treatments were compared in a release-recapture bioassay conducted in a large arena: oats, female frass, male frass, mixed sex frass, PC-floor trap with lure, and Storgard oil. Odorants were tested in both PC-floor trap and the Dome trap. Volatile compounds associated with male frass produced the strongest response in both males and females. The active compounds do not appear to be the same as those previously reported as aggregation pheromone for this species. We have fractionated active compounds from male frass and currently working on their identities.