10 THE OKTHOPTEKA OF MINNESOTA. 



Northwest Kansas, and the northern half of Colorado. 

 Although Minnesota may be said to be located in the tem- 

 porary region, i. e., a region onl}^ periodically visited, yet 

 parts of our state are unpleasantly near the boundary or 

 danger line, and therefore apt to be overrun by hordes of 

 hungry locusts, and such has been frequently the case as 

 shown above. PVom 1863 to 1878 there was hardl^^ a year 

 in which locusts did not occur in sufficient numbers to injure 

 the crops somewhere. When not occurring elsewhere they 

 were surely found in the Red River Valley. They did not 

 breed there during all these years, but sufficient new swarms^ 

 came from the Northwest to recruit the invading army and 

 make it formidable. 



As has been mentioned before, the state has been free of 

 the Rocky Mountain Locust since 1891. At present the 

 nearest point known to be infested with this insect is South 

 Dakota, and farmers living near the boundary line should 

 be on the lookout. 



Besides this species, frequently also called the " Hateful 

 Locust," two other kinds, both more or less migratory, 

 have caused much injury. One kind, the Lesser Migra- 

 tory Locust [Melanoplus atlanis) is still with us; at 

 present it is chiefly confined to the country along the St. Paul 

 & Duluth Railroad. It is a lit tie smaller than spretus, though 

 very closely resembling it. Its wings are also much longer 

 than the body, which enables it to fly long distances. This 

 species is essentially an Eastern one, being found in larger 

 or smaller numbers from the northern part of Florida to the 

 extreme north of Eastern United States. Like the hateful 

 Western locust it is single-brooded in Minnesota; it matures 

 more rapidly, becoming winged quite early in July. Eggs 

 are deposited soon afterwards, and oviposition continues 

 until cold w^eather. This insect is sometimes called the 

 "White Mountain Locust," from the fact that the great 

 losses to all sorts of crops sustained in difterent regions of 

 New England from locusts are almost all caused by this 



