=Chrysobothris femorata=, or the Thick-legged Buprestris, is another kind of apple-tree borer, very common in some parts of the West. The perfect insect may be seen running up and down the stems of our trees, in June and July. It is a blackish beetle, about half an inch long. The hole, bored by the grub, is flat, and not cylindrical like that of the _Saperda_. This beetle attacks the stem higher up than the _Saperda_, but burrows under the bark, and then sinks into the wood much in the same way. REMEDIES and PREVENTIVES are similar to those above mentioned. Seek for the young worms in their shallow burrows in August, before they have gone deeply into the tree. =Dicerca divaricata=, (_Say._), or the Cherry-tree Borer, is similar in its habit of boring in the sap wood under the bark, and may be combated in the same way. The perfect insect appears in June and July. =Prenocerus supernotatus=, or the American Currant Borer, feeds upon the pith of the stalk. The larva is a small, white grub, which changes into a slender, long-horned beetle; black, edged with chestnut-brown. The wing covers are marked with two small grey dots, anteriorly, and a crescent-shaped one behind the middle. It is very injurious to the currant bushes in many parts of the country, and constitutes a serious obstacle to growing the plants to a single stem, tree fashion. In the bush form of this plant, the constant reproduction of new shoots compensates for the destruction caused by the borer. There is another currant borer, an European, which is confined to young shoots; as it is not the larva of a beetle, but of a butterfly, it will be treated in its proper place. =Bostrichus bicaudatus=, or the Apple-twig Borer, affects the small twigs, and when numerous, will produce an effect like that called twig-blight, by causing the death of the part and the withering of the leaves, at mid-summer. A small hole will be found near the axil of a leaf; this turns with the twig, and often extends several inches along the pith. The insect is a small, chestnut-brown beetle, 0.25 to 0.35 of an inch long, and is characterized by two projections or horns at the hinder end. Has been found rather common from Michigan to Kansas. REMEDY.--Kill, when found. =Scolytus pyri=, or the Pear-blight Beetle, affects twigs of pear, apple, and other fruits, which wither and die at mid-summer. Small perforations, like pin holes, will be found, and issuing from them small cylindrical beetles of a deep brown or black color. REMEDY.--not known. =Lucanus dama=, or Horn-beetle, is a large insect, the larvæ of which are said to feed upon the trunk and roots of old apple and other trees. The perfect insects are of a dark mahogany color, smooth, and polished. Like other Stag-beetles, they fly at night, are not very harmful, and are believed to be several years in reaching the perfect state.