. The American entomologist. Entomology. Coloi-s—((f) brown and liliick; (b) browii. Next to the preceding species, the Golden Tortoise-beetle is the most numerous on our sweet-potatoes; but it does not confine its inju- ries to that plant, for it is found in equal abund- ance on the leaves of tlie Bitter-sweet and on the different kinds of Convolvulus or Morning Glory. The larva (Fig. 177 a, natural size; b, enlarged with the dung taken from the fork), is of a dark brown color, with a pale shade upon the back. It carries its frecifork immediately over the back, and the excrement is arranged i
. The American entomologist. Entomology. Coloi-s—((f) brown and liliick; (b) browii. Next to the preceding species, the Golden Tortoise-beetle is the most numerous on our sweet-potatoes; but it does not confine its inju- ries to that plant, for it is found in equal abund- ance on the leaves of tlie Bitter-sweet and on the different kinds of Convolvulus or Morning Glory. The larva (Fig. 177 a, natural size; b, enlarged with the dung taken from the fork), is of a dark brown color, with a pale shade upon the back. It carries its frecifork immediately over the back, and the excrement is arranged in a more or less regular trilobed pattern. The loaded fork still lies close to the back in the pupa, which is brown like the larva, and chieffy. characterized by three dark shades on the trans- parent prothorax, one being in the middle and one at each side, as represented at Fig. 178, c. The perfect beetle (Fig. 178, d), when seen in all its splendor, is one of the most beautiful [Pig. 178 ] objects that can well be imagined. It exact- ly resembles a piece of golden tinsel, and with its legs withdrawn and body lying flat to a leaf, the uninitiated ^ o would scarcely sup- (iiiors—(c) brown; (rf) golden, pose it to be an insect, did it not suddenly take wing while being ob- served. At first these beetles are of a dull deep orange color, which strongly relieves the trans- parent edges of the wing-covers and helmet, and gives conspicuousness to six black spots, two (indicated in our figure) above, and two on each side. But in about a week after they have left the pupa shell, or as soon as they begin to copu- late, they shine in all their splendor, and these black spots are scarcely noticed. The Pale-tliig'Iied Tortoise-beetle. {CassidapalUdaf Herbst.) Tliis species can scarcely be distinguished from the preceding. It is of a somewhat broader, rounder form, and differs in lacking the black spots on the wing-covers, and in having the thighs entirely pale yellow, while in aurichal
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectentomology, bookyear1
