592 
ARTICULATA. 
did, Katydid^ witli an occasional reply of Katy didn't, Katy didnH. This species is an inch and 
a half long, with wings of a pale-greenish color. The song is produced by the rubbing together 
of the hard glassy membranes at the base of each of the wing covers, with a saw-like motion. 
The songs of other grasshoppers are produced in a similar manner. There are numerous other 
species of this family in our country. 
THE LOCUSTINA. 
These insects resemble some of the grasshoppers, but tliey may be distinguished from them by 
the antennae, which are short, stout, and cylindrical, while tliose of the true grasshoppers are 
very long, slender, and tapering to a fine point. 
In the Locustina the tarsi are three-jointed, and the females have no apparent ovipositor. 
The head is usually furnished 
witli three ocelli. Few in- 
sects are more dreaded by 
the inhabitants of the wanner 
regions of the earth than 
these Locusts, which, from 
their often collecting in vast 
swarms, and moving onward 
with a steady and irresistible 
progress, quickly destroy 
every trace of vegetation over 
a vast extent of country, thus 
reducing the husbandman to 
despair, and converting the 
smiling; face of nature into a 
desolate wilderness. It was 
this insect, which was sent 
as one of the plagues of Egypt ; (Exodus, chap, x.) A district over which one of these dev- 
astating swarms has passed is said to appear, to the eye of an observer, as though every 
vegetable production which once decked its surface had been completely burned off the ground ; 
hence the Latin name of the insect, Locusta, from locus ustus, a burnt place, is peculiarly appro- 
priate. Eastern countries, and especially those in the neighborhood of the Levant, appear to be 
most exposed to the ravages 
of these destructive insects; 
and we find many highly poet- 
ical references to them in the 
writings of the Hebrew pro- 
phets, wherein this appearance 
of burning is expressly men- 
tioned. A'^Tien the vegetation 
of the place first devastated 
by these creatures is entirely 
destroj^ed, they take to flight 
in boundless multitudes to 
some other devoted spot, often 
formino' clouds of several hun- 
dred yards across, which, in 
their j)assage, sometimes con- 
ceal the light of the sun. 
AAHien engaged in the work 
of destruction, they are said 
LOCUSTS. 
THE LOCUSTA CEISTATA. 
to produce a sound resembling that of a strong flame di'iven by the wind, and the spot upon 
which they have alighted is almost immediately denuded of every thing green. The descent 
