I regret that I had not observed before writing paper No. 1, a valuable article by my esteemed friend Riley on this insect, in his last Annual Report on ihe insects of Missouri. He there speaks of effects produced by it on young pear trees in that section, precisely similar to those I described and expresses the opinion, which I also entertain, that the puncture of this iniect is peculially poisonous to the young growth on the tree. He says, “it attacks many kinds of herbaceous plants, such as dahlias, asters, marigolds, balsams, cabbages, potatoes, turnips,” &c., and several other trees, besides pear, viz., quince, apple, plum and cherry.