54 EEPORT UNITED STATES ENTOMOLOGICAL COMMISSION. 



History of Minnesota, wherein it is stated that in 1818 and 1819 vast 

 hordes of grasshoppers appeared in Minnesota, eating everything in 

 their course, in some cases the ground being covered three or four 

 inches thick. In the same years they were destructive in the Eed Eiver 

 country in Manitoba. In 1820, or the succeeding year, they ravaged the 

 western counties of Missouri, and Eiley^ suggests that the 1820 swarms 

 may have also ravaged Kansas and the neighboring regions northward. 

 In 1842, locusts appeared in Minnesota and Wyoming j in 1845, in 

 Texas ; in 1846 and 1847, in the limits of what is now Wyoming; and in 

 1849, in Texas, and possibly in Minnesota. In Utah they have appeared 

 from 1851 until 1877, except only the years 1873 and 1874, and a glance 

 at the table shows that this Territory is liable to suffer annually more 

 or less, especially in the northern portion. 



Vast swarms of locusts were seen in Idaho in 1852, as well as in 

 Utah, while Dakota was visited, or had native swarms, in 1853. The 

 year 1854 was a year for locusts in Texas, Kansas, and Utah, and 1855, 

 notable for locust ravages on the Pacific coast, was not a bad year east, 

 Texas only having been invaded, although A. S. Taylor states that 

 tbey abounded on the immense grassy prairies lying on the eastern 

 slopes of the Eocky Mountains, a statement supported by no facts, so 

 far as we can learn. 



In the year 1856, however, locusts prevailed in Texas, Kansas, Iowa, 

 Minnesota, possibly Wyoming and Utah, and in the succeeding year 

 they committed extensive ravages in Manitoba, and the States men- 

 tioned as suffering in 1856, with the addition of Nebraska. The States 

 of Texas and Nebraska received slight injury from the progeny of those 

 that migrated thither the previous two years. 



In 1860, the region about Topeka, Kans., was visited by what must 

 have been a limited and rather local swarm. 



The year 1861 witnessed the presence of locusts in Nebraska, Mon- 

 tana, and Utah, but the accounts are scanty. 



Montana and Utah suvstained losses from locusts in 1862, but in 1863 

 they occurred not only in those Territories, but also in Dakota and 

 Minnesota. 



But the most decided increase in the numbers of locusts was felt in 

 1864, a year of general visitation in Utah, Montana, Dakota, Colorado, 

 portions of New Mexico, and east of the plains in Nebraska, Iowa, Min- 

 nesota, as well as Manitoba, and there were resulting swarms, in most 

 cases the progeny of those which came in 1864, in Iowa, Minnesota, 

 Dakota, and Manitoba, while Montana, Colorado, and Northern New 

 Mexico had swarms of their own. 



A notable locust year was 1866, and, as Eiley states, the injury com- 

 mitted was sufficiently great and wide-spread to attract national atten* 



^Seventh, Eighth, and Ninth Reports on the Noxious, Beneficial and otherlnsects of Missouri. By 

 C. V. Eiley, State Entomologist, 1875-'77. The following history is largely taken from these reports, 

 sometimes word for word. 



