418 
STATE AGRICULTURAL SOCIETY. 
CURRANT. STALKS. 
to be the same insect with the supernotatus of Say is in reality a 
very different species pertaining to Dr. Leconte’s new genus 
Euderces. How they have come to lie pronounced the same it is 
difficult to understand, since Olivier explicitly states that the 
antennae of Pini are longer than the body, whilst Mr. Say informs 
us they are shorter than the body in his species. Olivier’s figure 
a of Pini is a very correct representation of the insect as it appears 
to the naked eye. His enlarged figure b is much less accurate, 
especially in the coloring and in placing the posterior white baud 
too far forward. His description of this insect shows this enlarged 
figure to be inaccurate, and coincides so perfectly with my speci¬ 
mens as to leave no doubt respecting the species to which the 
name Pini belongs. The Piniadeus of Fabricius is evidently the 
same insect described more briefly and much less accurately. 
Both authors doubtless drew their descriptions from the same spe¬ 
cimens, as they both cite the cabinet of Bose as containing the 
insect they describe, which insect was found upon pine trees in 
the neighbbrhood of the city of New-York Olivier states, whilst 
Fabricius gives Carolina as its locality. The latter is probably 
correct, as I have never met with this insect in New-York, and 
know it only from specimens sent me from west of Arkansas by 
Mr. Wm. S. Robertson. 
The whole length of the dead currant stalks and their brandies, 
from the buds at their tips down to the surface of the ground is 
commonly found to have been mined by these borers. The hol¬ 
low in the branches is usually but not always continued down 
into that in the centre of the main stalk. At least a foot in 
length of the pith appears to be required to support one of these 
worms and bring it to maturity. They are particularly fond of 
the younger and more tender stalks, and these being small have 
their whole interior ate away almost or quite out to the bark, so 
that they resemble hollow straws or sticks that have been con¬ 
sumed by white ants so that merely an outer shell remains. And 
not unfrequently a portion of the upper end of the stalk is broken 
off, from being so much weakened. The worm hereupon essays 
to plug up the opening thus made, with its sawdust-like chips, to 
prevent rain from entering its cell and to exclude spiders and 
other enemies. Sometimes a greater number of worms are placed 
