94 REPORT UNITED STATES ENTOMOLOGICAL COMMISSION. 



1873, 1875, and 1876, doing the most damage in 1875. (James M. Ar- 

 noux.) 



1872. — Locusts hatched out at Fort Benton in 1872. l^Tone were, how- 

 seen seen at Fort Shaw in June, 1872. 



1873. — A. swarm of locusts was observed July 10, 1873, in the valley 

 of Davis Greek, in the Yellowstone bad lands, by Messrs. W. F. Phelps 

 and J. A. Allen, as we learn from the former. 



1873. — W. Clark states that in this year locusts occurred from Fort 

 Buford westward and up the Yellowstone Eiver. Mr. B. Klein observed 

 a very few locusts in Bozeman in 1873. Mr. J. J. Healy states that lo- 

 custs came into the Sun Eiver Yalley in 1873 and laid eggs, which hatched 

 out in 1874 j swarms came in 1875, which hatched out in 1876 j the young 

 on being winged must have departed in 1876, this region being free 

 from then in June, 1877. At Fort Benton, locusts have abounded from 

 1873 to 1876. At Fort Shaw, 1873, 1874, 1875 were locust years. In 

 1875 they were most destructive. At Upper Missouri Yalley, near Dia- 

 mond City, the locust years were 1873, 1874, 1875, 1876, 1877. 



1874. — B. Klein, of Bozeman, states that locusts occurred abundantly 

 in that settlement in 1874, 1875, 1876. Extensive swarms of locusts 

 were seen at Fort Shaw in August, 1874, by Lieut. C. A. Booth, United 

 States Army. No eggs were laid in this year at Fort Benton. (E. A. 

 Miller.) 



1875.^Dr. James Shaw, post-surgeon at Fort Ellis, states that locusts 

 migrated there in 1875 and 1876. John Potter also states that dense 

 clouds of locusts appeared at Hamilton July 4, 1875, and laid eggs, hatch- 

 ing out the following year from April 4 to 24. Locusts were abundant at 

 Yirginia City July, 1875. (United States weather-signal office.) They 

 also devastated the plains west of Fort Benton, swarms darkening the 

 sun at Sun Eiver. 



1876. — Locusts were abundant, though not flying in swarms, in the 

 summer of 1876 along the Y^ellowstone Eiver. (Lieut. C. A. Booth.) 

 They were observed to be thick on the ground, it being rainy, in July, 

 1876, at the mouth of the Eosebud Eiver, and for five miles up the 

 stream, by Mr. William Cody, a scout attached to General Custer^s expe- 

 dition. ^' Officers who passed over the country between the Little Mis- 

 souri and the Yellowstone Elvers during the spring state that at va- 

 rious points in that region young locusts were found in immense numbers. 

 Shortly before the 23d of July migrating swarms of locusts appeared in 

 the vicinity of General Crook's camp ; myriads of grasshoppers filled the 

 air, appearing like an immense drifting snow-storm, tending toward 

 the southeast." (Whitman's Eeport, p. 17.) Locusts hatched in May 

 at Fort Peck; June 20, swarms arrived from the east. (Hughes.) 



Locusts hatched near Helena this year. (James Fergus.) At Hamil- 

 ton no eggs were deposited in 1876, consequently none hatched in 1877. 

 (John Potter.) General John Gibbon, United States Army, writes us 

 that the locusts which visited Fort Shaw in the summer of 1876 "came 



