No. 145.] 
721 
win, as follows: “ The borer first made a flexuous channel up¬ 
wards, under the bark, a distance of two feet, the channel be¬ 
coming gradually larger as the worm had increased in size. 
Having traced its burrow thus far by means of a pointed twig, 
for (said my informant) whenever I find one of these fellows in 
my trees I am after him immediately ‘ with a sharp stick,’ I 
found he had bored directly through the centre or heart of the 
tree, which was four inches in diameter, taking a cqurse slightly 
upwards, so that after loosening and removing some of the stuff¬ 
ing in the hole, I discovered my rod had pricked through the 
bark on the opposite side of the tree, and yet did not encounter 
the worm; but on examining upon this side of the tree I found, 
having not quite completed his feast, he had gone upwards 
in the sap-wood three inches further, where I finally discovered 
‘ the gentleman.’ He evidently had finished his travels, for he 
was an inch and a half in length, was sluggish and inactive, and 
to all appearances was about changing to a pupa.” According to 
Dr. Harris (Treatise on New England Insects, page 95,) the larva 
state of this insect continues from two to three years. 
Mr. T. B. Ashton, of Whitecreek, New-York, informs me that 
he has in different years captured about one hundred and fifty of 
these beetles in their perfect state, and that only one-third of 
these have been females. According to his observations the time of 
their appearance varies somewhat, as the season is more forward 
or backward, but commonly, here in Washington county, forty 
miles north of Albany, they begin to be found upon the trees 
about the 20th of June, from which time until the close of the 
month they appear to be more numerous than they are afterwards. 
The mature worm varies considerably in itssiae, but is most commonly rather lees 
than an inch long, and over a quarter of an inch in diameter anteriorly at its broadest 
part. It is of a cylindrical form, tire second segment being bulged and rather broader 
than the others. It is soft and fleshy, and of a very' pale yellow or a white color. 
The head is chestnut-brown, polished and horny, with scattered hairs; the upper 
Jaws (mandibles) are deep black, sloped at their tips, which are obtusely rounded; 
between them appears the labrum or upper lip, of a tawny yellow color, and 
densely clothed with short liairs; the throat is also pale tawny yellow. The feelers 
(palpi) consist of a conical, three-jointed process, on the under side of each mandible, 
and inserted upon the lower jaw (maxilla), the tip of which slightly projects in the 
(Assembly, No. 145.J 46 
