In introducing this subject it is my intention to speak shortly upon the various species of Locusts which have appeared in injurious numbers within the territorial limits to be designated with each species. Some of these species have covered a vast area of territory, and have caused extensive injury from time to time, while others have appeared over limited areas only, and have caused but slight injuries; but yet these have been sufficient to necessitate their mention amongst the destructive species of the country. Taking them altogether, we have exactly twelve destructive locusts within the territory designated.