734 [Assembly 
thickly punctured, the punctures on the venter or hind part of the body openin’ 
backwards. The last segment has an elevated line in the middle at its base, and its 
apex is cut off by a straight line, in the middle of which is commonly a small pro¬ 
jecting tooth. The anterior thighs are remarkably large, from which circumstance 
this species has received its name, and they have an angular projection on their inner 
sides, beyond the middle. The tibia) or shanks of these legs are slightly curved. 
The remedies for destroying this borer must necessarily be 
much the same with those already stated for the common borer 
or Striped Saperda. They consist essentially of three measures : 
1st, coating or impregnating the bark with some substance repul¬ 
sive to the insect; 2d, destroying the beetle by hand picking; 
and 3d, destroying the larva by cutting into and extracting it 
from its burrow. 
As it is during the month of June and fore part of July that 
the beetle frequents the trees for the purpose of depositing its 
eggs in the bark, it is probable that whitewashing the trunk and 
large limbs, or rubbing them over with soft soap, early in June, 
will secure them from molestation from this enemy. And in dis¬ 
tricts where this borer is known to infest the Apple trees, the 
trees should be repeatedly inspected during this part of the year, 
and any of these beetles that are found upon them should be cap¬ 
tured and destroyed. It is at midday of warm sunshiny days 
that the search for them will be most successful, as they are then 
most active, and show themselves abroad. The larvae, when 
young, appear to have the same habit with most other borers, of 
keeping their burrow clean by throwing their castings out of it 
through a small orifice in the bark. They can therefore be dis¬ 
covered, probably, by the new sawdust-like powder which will be 
found adhering to the outer surface of the bark. In August or 
September, whilst the worms are yet young, and before they have 
penetrated the heart-wood, the trees should be carefully examined 
for these worms. Wherever from any particles of the sawdust¬ 
like powder appearing externally upon the bark, one of these 
worms is suspected, it will be easy, at least in young trees, where 
tne bark is thin and smooth, to ascertain by puncturing it with a 
stiff pin, whether there is any hollow cavity beneath, and if one 
is discovered, the bark should be cut away with a knife, until the 
worm is found and destroyed. After it has penetrated the solid 
