Psocids are becoming serious pests of stored grain and understanding the effects of physical conditions on their development is important for their management. We conducted a survey of psocids in wheat in steel bins in Kansas in the fall of 2004 to determine prevalence of psocid species. We sampled using 3.5 x 4.0-inch corrugated cardboard “traps”, and found predominantly 2 species, Lepinotus reticulatus Enderlein and Liposcelis bostrychophila Badonnel, both of which are parthenogenetic species. The numbers of L. reticulatus and L. bostrychophila found were as high as 165 and 5,800 per “trap”, respectively. Studies on the biology of L. reticulatus are nearly non-existent. A colony of L. reticulatus maintained on a mixture of cracked hard red winter wheat, rice krispies, and brewers yeast in the proportion 97:2:1 (by weight) was used to conduct life history studies. Data on experimental techniques and effects of temperature on the life cycle of L. reticulatus will be presented.