CHAP, XI.] Butterflies and Locusts. 193 
wings, and having a body proportionately long and thick. 
The caterpillar, which is smooth, and of a greenish yellow, 
with minute black dots all over, and with seven or eight 
bluish stripes on the sides, having a horn above the tail, is 
likewise very large, being, when full grown, about six inches 
long. It feeds on the potato, the deadly -nightshade, the 
jasmine, and the Lycium barbarum, and other plants of as 
dissimilar a nature.” 
In another article he mentioned the herald moth (Sca- 
liopteryx libatrix), a specimen of which was presented to 
him by Mrs.G. Bannerman. He describes this beautiful in- 
sect as occurring in great profusion in some of the South- 
ern parts of England, but as very rare in the North. It is 
called the “ herald” moth, because it is said to indicate the 
approach of winter. | 
The peacock butterfly (Papilio Jo) was caught in Duff 
House garden, close to Banff. Although common in En- 
gland, this butterfly is very rare in Scotland. Morris makes 
no mention of its ever having been seen in the North. A 
great flock of these butterflies passed over a part of Switz- 
erland in 1828, when they were described as a swarm of 
locusts. This circumstance led Edward to insert some ob- 
servations regarding that destructive insect, the Locusta mi- 
gratoria, which passed over this country in the year 1846, 
the ever-memorable potato-famine year. 
“Great numbers,” he says, “ were found in the counties 
of Aberdeen, Banff, and Moray. Several were also got in 
the sea at Aberdeen, as well as near Banff. Some of those 
found were very large, being two and a half inches long, 
and nearly as thick as one’s little finger; their wings ex- 
panding to about four inches in breadth. Nine of this size 
were found by one individual in a turnip-field at the Stock- 
et, near Aberdeen. They were brought to me while I was 
there with my first unfortunate collection. But, large 
though this may seem, it is nothing to others. We are 
told that in India there are locusts of a yard in length. I 
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