Additional species of stored grain insects have been found in Michigan since the inventory of such pests was published (Ruppel 1977). The additional species were primarily found through a study of insects in county elevators (Russell 1980) and through examinations of infested grains submitted for identification. The names of these insects are given in Table 1. The brown spider beetle and murmidius beetle were found in infested small grains, the European grain moth was found in stored soybeans and in elevator trash. and the others were found in elevator trash.
Ruppel, Robert F.
"Addendum to the Inventory of Stored Grain Insects in Michigan,"
The Great Lakes Entomologist, vol 16
Available at: https://scholar.valpo.edu/tgle/vol16/iss4/15