49 
much the same, have not been severely daiiiaj^iMl by tlie native loensts, 
jis has been the case in the hitter region. 'IMie exphmation, it secuns, 
lies in the more thoronji^ii system of enltivation and in the praetiet; of 
enttin<;- the grass ah)ng the irrigating ditelies, thongh probably several 
other factors have combined to bring about the result. 
IDAHO. 
Specimens of the l\ocky Mountain locust were captured at i'ocatello 
and at American Falls. In the table-lands west of IN)catello and to 
the h'ft of the Port Neuf liiver numerous sjx'cinuMis of s]}refns, which 
had bred in the valley, were found coUected and x)reparing to migrate. 
A strip about one-half mile wide by nearly a mile long was i)racti- 
cally covered Avith them. The 1st day of Septend)er, the wind having 
been unfavorable for several days, but having now^ changed, they arose 
and, ('ollecting in a rather compact mass, disapi)eared in a northeasterly 
direction. After they had left, where thousands had been seen before not 
one was to be found. Search was made for eggs, but none were found; 
nor were any females seen in the act of depositing them. The only 
subsequent trace of this swarm that I have been able to find was con- 
veyed in the information given me by a ranchman who came from near 
Eagle Rock. He stated that on the same day (September 1) he had 
seen a swarm of locusts a few miles north of Blackfoot, passing to the 
northeast. Probably the destination of this swarm was the head- 
waters of the Snake Eiver, in northwestern Wyoming. They caused 
no danuige in the vicinity of their starting point, for it was not an agri- 
cultural or a grazing country, and it is not probable that they reached 
a country in which they could do much damage. It is altogether likely 
that this swarm, which was the only one at all of formidable proportions, 
will be heard of next year, though its present whereabouts is not known. 
The native species have not been much in evidence; the oidy case of 
damage was reported from near Nampa, and was caused to young [)rune 
trees by Acridinm shoshone. They had been damaged, it was said, to 
the extent of several hundred dollars. 
At various times information as to hordes of western crickets (Ana- 
brus) was reported to me while passing through this region. They had 
reference in most cases to inaccessible regions, and were not in many 
cases to be relied upon. One of these reports came from Hailey, but I 
have received information of a rather contrary character from the resi- 
dents. Another report of the same nature came from Challis. 
OllEGOT^ AND WASIIIN(i1\)N. 
These States were not included directly in my letter of instructions, 
but reports of damage in accessible points led me to visit certain local- 
ities in the eastern i:>ortion of them. From reports given me by resi- 
dents, it appears that for the last three years the wheat growers, 
especially in Wasco, Umatilla, Union, and Baker counties in Oregon, and 
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