Insects injurious to fruits . tion of tlie body. Beliind the head there are two long, red,fleshy horns, which can be protruded at will, and these, whenextended, emit a very disagreeable odor, which ^Q- 3Si. probably serves to protectthe caterpillar from itsenemies. The under sideof the body is of a brown-ish color. The larva com-pletes its growth in abouta month, when it changesto a chrysalis. This isnearly an inch and a halflong (see Fig. 391), irreg-ularly forked at its upper end, with a prominent point uponits breast, and a loop of silk around the middle; the hinderextremity is also fastene
Insects injurious to fruits . tion of tlie body. Beliind the head there are two long, red,fleshy horns, which can be protruded at will, and these, whenextended, emit a very disagreeable odor, which ^Q- 3Si. probably serves to protectthe caterpillar from itsenemies. The under sideof the body is of a brown-ish color. The larva com-pletes its growth in abouta month, when it changesto a chrysalis. This isnearly an inch and a halflong (see Fig. 391), irreg-ularly forked at its upper end, with a prominent point uponits breast, and a loop of silk around the middle; the hinderextremity is also fastened to the supporting twig or branch,hooked in a tuft of silk. Its color is gray and brown, of. 380 INSECTS INJURIOUS TO THE ORANGE. varying shades, and so exactly resembles that of the barkof the orange-tree that it is extremely difficult to detect. Infrom eight to sixteen days after the chrysalis is formed thebutterfly emerges. In Florida there are usually four broods of the butterfliesin the course of the summer, the last brood wintering in thechrysalis state, from which the butterflies emerge in caterpillar, which is commonly known as the orangedog in Florida, devours the foliage of orange-trees, sometimesseriously injuring young trees by stripping them bare. Itmay easily be subdued by hand-picking, as its large size andsingular appearance promptly lead to its discovery. Within the past ten years this butterfly has extended itsrange very much, and it is now comparatively commonthroughout the Northern and Western States, and in thewarmer parts of Canada. In the North it feeds chiefly onprickly ash, Zanthoxylum Americanum. No. 240.—The Orang^e Basket-worm. Platoece
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