![]() ![]() ![]() This behavior of the pupae is rightly termed as wandering. As the caterpillars approach their final stage, they start looking for a place to burrow so that they can enter the next stage, which is the pupal stage. The characteristic horn or spike on their abdominal segment, that gives the caterpillars their name, also keeps reducing in length with each successive instar. Throughout the successive instars, the caterpillars grow in size. The caterpillars go through 5 larval instars or developmental stages that span over a period of about 20 days. They feed on the foliage of the plant on which the eggs were laid. Also known as caterpillars, these larvae are green in color and about 70 millimeters in length. Larva Within 2 to 4 days after they have been laid, the eggs hatch into larvae. However, occasionally, these may also be laid by the female moth on the upper surfaces of leaves. They are mostly found on the lower surfaces of leaves. Here is a step by step account of the tobacco hornworms’ life cycle.Įggs The tobacco hornworms’ eggs are spherical and translucent-green in color. The emergence of an adult moth by the transformation of the larva is an example of complete metamorphosis. The larvae become the pupae, that finally mature into adults. It begins with the eggs that hatch into larvae. The tobacco hornworms’ life cycle is a short one that spans over 30 to 50 days.
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