110 
COLEOPTERA. 
also sometimes found in Pennsylvania ; but be does not 
appear to have known anything of its histoiy. It is also 
found in Massachusetts, but has been rarely seen until 
within a few years. One of my specimens was taken in 
Milton about twenty years ago, and several others were 
taken in Cambridge, during the summers of 1843 and 1844, 
upon the European lindens, from the tranks and branches 
of which they had just come forth. A knowledge of the 
habits of this insect might have led to its more frequent 
discovery. One of the lindens above named was a noble 
and venerable tree, with a trank measuring eight feet and 
five inches in circumference, three feet from the ground. 
A strip of the bark, two feet wide at the bottom, and 
extending to the top of the trank, had been destroyed, and 
the exposed surface of the wood was pierced and grooved 
with countless numbers of holes, wherein the borers had 
been bred, and whence swarms of the beetles must have 
issued in past times. Some of the large limbs and a portion 
of the top of the tree had fallen, apparently in consequence 
of the ravages of these insects ; and it is a matter of surprise 
that this fine linden should have withstood and outlived the 
attacks of such a host of miners and sappers. 
The lindens of Philadelphia have suffered much more 
severely from these borers. Dr. Paul Swift, in a letter 
written in May/ 1844, gave to me the following interesting 
account of them. “ The trees in Washington and Inde- 
pendence Squares were first observed to have been attacked 
about seven years ago. Within two years, it has been found 
necessary to cut down forty-seven European lindens in the 
former square alone, where there now remain only a few 
American lindens, and these a good deal eaten.” “ Many 
of the beetles were found upon the small branches and leaves 
on the 28th day of May, and it is said that they come out 
as early as the first of the month, and continue to make 
their way through the bark of the trank and large branches 
dux’ing the whole of the warm season. They immediately fly 
