=Leptostylus aculiferus=, bores under the bark of apple trees. It is a short, thick, brownish-gray beetle, with thorns upon its wing-covers; hence, the scientific name of needle-bearer. Length, 0.35 inch; season, August. The larvæ are small worms, occurring in multitudes under the bark, and making long-winding burrows. =Tomicus mali=, or the Apple-bark Beetle, is described by Dr. Fitch as new. He says, it is a small, smooth, black or chestnut-red, cylindrical beetle; the larvæ feed under the bark, and then enter the wood, killing the young tree. =Conotrachelus Nenuphar=, (_Herbst_), is the noted and notorious and yet little known Plum Weevil, that is such an abomination to plum planters, and which has proved very injurious to our peaches and is even accused of producing deformities in our pears and apples. The egg is deposited in the fruit, where it soon hatches and feeds, approaching the stone. This causes the fruit to fall, and when the grub has attained its full size it descends into the ground to perform its transformation. The perfect insect, a small, dark-gray beetle, either crawls up the stem, or flies to the trees. Mr. Walsh reminds us that Dr. Trimble has found these insects hybernating in sheltered places. REMEDIES.--It is lamentable that we have been able to do so little to prevent the ravages of this insect. The plan of shaking off, and destroying the affected fruits, promises the best results, by diminishing the next crop. It was suggested by David Thomas, of New York, but is most successfully practised by Dr. E.S. Hull, of Illinois, who has invented an inverted umbrella on wheels, which receives the insects, as well as the defective fruits, when it is bumped against the trees. By the use of this, he is enabled to harvest splendid crops of stone-fruits. =Pomphopoea Sayi=, (or _Cantharis pyrivora_, of _Fitch_), is called by him the Pear Blister-fly. He describes it as a long blistering beetle, of a green-blue color; found on a pear tree about the first of June, eating the young fruit voraciously. =Euryomia Inda=, or the Indian Cetonia, is a beetle about six-tenths of an inch long. The head and thorax dark, copper-brown, thickly covered with short, greenish-yellow hairs; wing-cases light yellowish-brown, changeable, with metallic tints. These are called flower-beetles, because they consume the pollen, and bury themselves in our flowers; but in the autumn, they consume our choicest fruits, especially peaches.