. Elements of comparative zoology. Zoology. 266 SYSTEMATIC ZOOLOGY. The swallowtails are well-known forms of butterflies in which the hind wings are prolonged into tails, whence the name. The larvae of these forms are usually brightly col- ored, but they are protected by a pair of 'stink-horns/ which they can project at will from the region of the neck, and which give off, in most cases, a most offensive odor. Another group of butterflies, whitish yellow or orange in color, are typified by the cabbage-butterflies. We had some of these which were bad enough; but a few years ago the European cab
. Elements of comparative zoology. Zoology. 266 SYSTEMATIC ZOOLOGY. The swallowtails are well-known forms of butterflies in which the hind wings are prolonged into tails, whence the name. The larvae of these forms are usually brightly col- ored, but they are protected by a pair of 'stink-horns/ which they can project at will from the region of the neck, and which give off, in most cases, a most offensive odor. Another group of butterflies, whitish yellow or orange in color, are typified by the cabbage-butterflies. We had some of these which were bad enough; but a few years ago the European cabbage-butterfly came to this country and became the greatest pest of all our butterflies. Of smaller size—the most delicate of all our butterflies —are those forms which have received the common names of the blues, the coppers, and the hair-streaks, from their predominant colors and from the ornamentation of the wings. Of larger size are the group of 'four-legged' butterflies (fig. 84), so called because the first pair of legs are so small. Fig. 84.—A four-legged butterfly (Argynnis aphrodite), under side shown on right. as to be of no use to the animal. Of these forms there are hundreds of species, including the milkweed-butterflies, the painted-beauty, the mourning-cloak (the first butter-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Kingsley, J. S. (John Sterling), 1854-1929. New York, H. Holt and Company
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