164 
I5UG, 
have never observed in any other creature: in 
these too, if clear, as they may sometimes be 
found, the wonderful motions of all the internal 
parts will afford an agreeable entertainment to 
the curious, and may be examined as long and as 
often as they please; for I have kept a Bug alive 
in a slider between two pieces of isinglass at least 
six weeks together, notwithstanding it was con- 
fined so close as to be unca])able of stirring; and 
although during that time it ofteh seemed dead 
and motionless when I placed it before the micro- 
scope, a little warmth would set the bowels in 
motion, and renew the current of the blood as 
briskly as ever.” 
A variety of this Insect is sometimes seen, 
which is generally known by the name of the 
American Bug ; it is of a longer shape than the 
common species. 
So very numerous is the genus Cimex, that it is 
found necessary to divide it into several sections,, 
according to the general shape or habit of the In- 
sects. Among those in which the scutellum or 
triangular part between the setting on of the 
wings is of equal length with the body the 
Cimex lineatus may serve as an example, which is 
of a black colour, varied with yellow, having five 
yellow lines down the thorax, and three on the 
scutellum, and the abdomen yellow with black 
spots. It is a native of Barbary and some of the 
Southern parts of Europe. 
Of those in which the upper wings are of a 
much more strong or coriaceous nature than the 
