INTRODUCTION.

The third annual report of the Entomologist of theState Experiment Station of the University of Minnesota ,respectfully submitted to His Excellency, Governor D. M.Clough, contains an account of all such Orthopterousinsects as Locusts, Grasshoppers, Crickets, Cockroachesand others which occur in our state, and which have provedso destructive in the past, and are ever ready to cause severelosses in the future. Other work only commenced or partlyfinished will be submitted later.

There remains for the entomologist the pleasant dutyof expressing his sincere thanks to all persons that haveaided him in many ways in his work. Especial thanks aredue to the different newspapers, who with unfailing courtesvpublished all articles written for the instruction of thefarmers in regions infested by injurious insects. The Chicago,St. Paul, Minneapolis & Omaha, the Great Western, the St.Paul & Duluth, the Northern Pacific , the Minneapolis & St.Louis, and the Great Northern R. R. Companies also deservethanks for their liberality in furnishing free transportationover their roads whenever such was asked.