| These insects, termed hemimetabolous, are said to undergo incomplete metamorphosis. |
| Leafhoppers, family Cicadellidae, are hemimetabolous insects whose young look like miniature versions of the adults, minus fully developed wings. |
| This second gene is only found in holometabolous insects, Drosophila, and silkworms but not in the more primitive hemimetabolous insects, like grasshoppers or springtails. |
| The immature nymphs of hemimetabolous insects such as the grasshopper or cockroach for instance are born with adult-like morphology. |
| Because development is not the same in all insects, it is convenient to group them into major categories according to the pattern of structural changes: ametabolous, hemimetabolous, and holometabolous. |
| The hemimetabolous life cycle consists of egg, nymph, and adult. |
