Paurometabolous Metamorphosis - Insects that undergo this type of simple metamorphosis look similar to the adult as immatures. Their wing pads (Figure 19) become more noticeable as they get closer to adulthood. The true bugs of the Hemiptera are an example of an insect group that undergoes this type of metamorphosis.
Complete Metamorphosis Holometabolous Metamorphosis - Complete metamorphosis differs from simple metamorphosis in that wing formation is internal and there is a period of inactivity called the pupa. Insects that undergo complete metamorphosis have an egg, immature stage (usually called larva), pupa and adult.
Larval Types - Finding larval insects in the field is always exciting. Because they often look very different from the adult forms, being familiar with the different larval types will prove useful. Photographs of each larval type are provided in Figure 20. o Vermiform larvae are maggot-like or worm like. They are legless and may or may not have a welldefined head.
Figure 20: Larval types: vermiform (deer fly) [top left], elateriform (wireworm) [top right], eruciform (Noctuid moth) (center), campodieform (lacewing) [bottom left], and scarabaeiform (white grub) [bottom right].
o Elateriform larvae are cylindrical shaped with short legs. This form is representative of the wireworms. o Eruciform larvae are caterpillar-like larvae. They have well developed heads with short antennae. They have both true legs and prolegs. o Campodeiform larvae have an elongated, somewhat flattened body. They usually have well developed antenna. o Scarabaeiform larvae are grub-like and are usually C-shaped. They have well developed heads and only true legs.
Pupal Types - From science class, you have more than likely heard “chrysalis” or “cocoon” to describe the stage where a larva transforms into an adult. That terminology is
Entomology
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