. Insect life; an introduction to nature study and a guide for teachers, students and others interested in out-of-door life. Entomology; Nature study. 40 INSECT LIFE. But many insects will not lay in confinement. They are more apt to lay in confinement if caged with a growing food plant of the larva. 5. Caterpillars and the corresponding stage of other insects with a complete metamorphosis are called larvte. The singular form of this word is larva. 6. When a larva is full grown it molts its skin and appears in a very different form. This third stage (the &^g being the first and the larva t
. Insect life; an introduction to nature study and a guide for teachers, students and others interested in out-of-door life. Entomology; Nature study. 40 INSECT LIFE. But many insects will not lay in confinement. They are more apt to lay in confinement if caged with a growing food plant of the larva. 5. Caterpillars and the corresponding stage of other insects with a complete metamorphosis are called larvte. The singular form of this word is larva. 6. When a larva is full grown it molts its skin and appears in a very different form. This third stage (the &^g being the first and the larva the sec- ond) is called t\ie pupa. The plural of pupa is pupa. In Fig. 18 there are represented two larvae on the upper edge of a fragment of a leaf and a pupa sus- pended from the lower edge. The pupae of butter- flies are sometimes called chrysalids.* 7. Some larvae before changing to the pupa state spin about the body a silken case within which the pupa Fig. 19.—a large cocoon within a roUed leaf. State is paSSCd. Such a case is called a cocoon. Sometimes a leaf is fastened about the cocoon (Fig. 19); and some hairy caterpillars make their cocoons largely of their own hair, fastening it to- gether with a thin layer of silk. 8. Following the pupa state is the adult or imago state. * There are two forms of this word: first, chrysalid, with the plural chrysalids; and, second, chrysalis, with the plural chrysalides. The singular form of the second and the plural form of the first are in more common 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. New York, D. Appleton and Company
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