"Prepared by Extension Entomologists of the North Central States in cooperation with the Federal Extension Service, U. S. Department of Agriculture.""This is the first in a series of picture sheets prepared by Extension entomologists of the North Central states in cooperation with the Federal Extension Service, U. S. Department of Agriculture. The principal species of stored grain insects found in Missouri are pictured showing both the adult and larval forms. The small, black drawings indicate the actual size of the insects.""Picture sheet no. 1.
