94 
FIRST ANNUAL REPORT OF THE 
“ Great Salt Lake City , Utah , about November', 1867. — In a field that was being planted 
in the north-east portion of this City, last Monday, numbers of young Grasshoppers 
(the size of House-flies) were turned up by the plow, all alive and green , and quite re¬ 
cently hatched.” — Ibid., p. 365. 
It is by no means certain, that the insect referred to in the above six paragraphs is 
the same species as the Hateful Grasshopper of the other side of the Rocky Mountains. 
Indeed, as the young ones that hatched out underground from the eggs in November, 
1867, are said to have been “green, ” while those that hatched out in Kansas from the 
eggs of the true Hateful Grasshopper in the spring of 1867, are said by Mr. Goble to 
have been “milky-white upon leaving the egg,” (above p. 91,) I should rather infer 
that it belonged to a different species, peculiar to the western slopes of the Rocky 
Mountains. If it be the same, its appearing in the winged state in Utah, A. D. 1867, 
nearly a month sooner than it appeared in the Valley of the Mississippi, A. D. 1866, may 
be accounted for, partly by the western exposure of the Rocky Mountains being perhaps 
warmer than the eastern exposure, which would, of course, have a tendency to accele¬ 
rate the transformations of the insect, and partly by the invading army not having to 
march so far in this case to reach its “ objective point.” In the lowlands on this side 
of the Rocky Mountains, the average daily progress of the Hateful Grasshopper, when 
full fledged, in 1866, was only, as we have seen, from five to ten miles. (Above p. 90.) 
THE LAST INVASION OF THE HATEFUL GRASSHOPPER IN THE AUTUMN 
OF 1867. 
From the following extracts, which I have laboriously gleaned from various sources, it 
appears that, contemporaneously with the above invasion of Utah and just one year 
after the Grasshopper-invasion of Kansas, Nebraska and Missouri in 1866, and at least 
42 days* after the last remnants of the descendants of that great army had finally 
wasted away and disappeared from the invaded territory, a fresh host of invaders 
descended upon the fertile plains of the Mississippi from the barren canons (kanyons) of 
the Rocky Mountains, and at precisely the same period of the year. This time, how¬ 
ever, they took a rather more northerly course, the main body descending through 
Nebraska upon Iowa, instead of through Kansas upon Missouri. Still, in both years 
there were flying columns of the enemy, that deviated a little from the general line of 
march either to the right or to the left. For, as will be seen hereafter, some of the more 
northerly parts of Kansas and the extreme north-west corner of Missouri were invaded 
by the army of 1867 ; and, as I have shown in the Practical Entomologist , the southern 
parts of Nebraska were very generally invaded by the army of 1866. This second invad¬ 
ing army, however, does not seem to have been quite as numerous as that of the pre¬ 
ceding year. 
It has been erroneously supposed by many, that this swarm of winged Grasshoppers, 
which made its appearance in Kansas, Nebraska and Iowa from Aug. 25th to Sept. 30th, 
1867, w r as not a fresh importation from the Rocky Mountains, but simply the individuals 
that hatched out in the spring of 1867 from the eggs laid in the autumn of 1866 by the 
* As may be seen by the accounts collected from various sources and printed above, the departure of 
the Grasshoppers that hatched out in the spring of 1867, in Kansas, Nebraska and Missouri, from eggs 
laid in the preceding autumn, is variously dated in various localities from June 25th on to July 14th; 
while the earliest invaders in the autumn of 1867, as will be immediately shown, appeared August 25th, 
aud the latest September 30th. 
