. A manual for the study of insects. Insects. 37^ THE STUDY OF INSECTS. thorax. These have been termed osinateria (os-ma-te'ria), and are supposed to be organs of defence; for they exhale when pushed ^"4 out an odor which in some species is exceedingly dis- agreeable. The chrysalids are thickened in the middle and taper considerably at each end ; they are more or less angulated, and have certain parts excessively produced ; they are sus- pended by the tail and by a loose girth around the middle. This family includes two well-marked subfami- lies, which are distin- guished as follows :— A.
. A manual for the study of insects. Insects. 37^ THE STUDY OF INSECTS. thorax. These have been termed osinateria (os-ma-te'ria), and are supposed to be organs of defence; for they exhale when pushed ^"4 out an odor which in some species is exceedingly dis- agreeable. The chrysalids are thickened in the middle and taper considerably at each end ; they are more or less angulated, and have certain parts excessively produced ; they are sus- pended by the tail and by a loose girth around the middle. This family includes two well-marked subfami- lies, which are distin- guished as follows :— A. Hind wings with a tail- like prolongation ; ground- color of wings black ; radius of fore wings five-branched ; the base of vein VIII of fore wings preserved as a spur-like branch of vein VII (Fig. 456). p. 376 Pa PI LI ON I NiE. AA. Hind wings without tail-like prolongation ; ground color of wings white ; radius of fore wings four-branched ; vein VIII of fore wings wanting, p. 380 Parnassiin^. Fig. 456.—Wings cf Papilio Jfolyxenes, Subfamily Papilionin^ (Pa-pil-i-o-ni'nae). The Swallow-tails, These magnificent butterflies are easily recognized by their large size and the tail-like prolongations of the hind wings. The ground color of the wings is black, which is. 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 Comstock, John Henry, 1849-1931; Comstock, Anna Botsford, 1854-1930. joint author. Ithaca, N. Y. , Comstock Pub. Co.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectinsects, bookyear1895
