Fig. 1 shows, a, larva; and b, the moth of Datana ministra, the Yellow-necked Apple Tree Caterpillar; c, is a mass of eggs; and d, an egg magnified. There are various forms of this moth, some so nearly alike as not to be dis number of orders, with the single .exception of reCognizing the division of the Hemiptera into HeMoptera and Heteroptera as of ordinal value. The orders of insects are founded primarily upon the number and structure of the, wings. This mode of division was first suggested by Aristotle, who gave the names which they now bear to two . .
Ainguished by the ordinary observer, and which, sometimes, live within and sometimes without their webs.. At Fig. 2, is a, larva; b, pupa and c, perfect beetle; d, tip of abdomen ; e, antenna;, and f, a section of one of the legs of the Spotted of the orders, namely, the Coleoptera and the Diptera. It was afterward almost perfected by Linnzeus, but has been somewhat modified by Pelidnota, the grub of which lives in rotten wood, and the beetle feeding on the leaf of the grape, and sometimes, it is said, severing.-the young branches. Fig. 3–a, 3–b, and 3–e, show the Broad-necked Priornus, nn injurious class, a, beetle, b, pupa and c, larva. These larva) mine the trunks of balm of gilead, poplar and some other trees. Fig. 4 is the Grape-vine Col aspis, 1, magnified, 2, natural size. It often does ., ...no 'A A •111 1 .1. Fig. 5 is the Tussock moth, the larva of the various species of which feed on the leaves of a number of trees. Fig. 6 shows a Gall-making pemphigus, species of minute insects which lay their eggs on the leaves of trees, the galls or vege table covering being formed over them.
Fig. 7 shows a Chalets parasite; a, pupa, b, perfect insect; the hair line showing natural size Th.e flies are most hone ficial, they lay their eggs in other in sects. Fig. 8 is the winged form, highly mag nified, of the Maple-tree louse. (See article on Maple Tree Louse.) Fig. 9 shows a leaf at tacked by the larva of the Grape-vine Flea bee tle; b, larva magnified, e, earthen cell in which the beetle transforms; beetle. The hair line next the beetle and larva shows the natural size. Fig. 10, shows the Bordered Soldier Bug, they and the other soldier bugs live on other insects, and are among the few which attack the orado Potato beetle. Fig. 11 is the Spotted Ladybird, the beetles of all the species of which In all their transformations, eat insects, and especially the eggs of the Colorado beetle. (See article Ladybird.) Fig. 12 shows the Flat headed Apple-tree Borer, a, larva, b, pupa, c, head and first two sections magnified; 4, beetle. Fig. 13 is the well known Squash Bug.—Fig.
14 the New York Weevil, which eats the buds of the tree; a shows slit in the bark under ,which the egg is laid; b, larva; c, beetle. Fig.
15 is, the caterpillar of the Archippus butter fly. The winged insect measures sometimes four and a half inches 'across the wings. The wings on the upper side are tawny orange, on the under side deep nankin-yellow; the veins are black, and there are yellow and white spots on the black tips of the fore wings.