complete metamorphosis A type of insect development in which the insect passes through the stages of egg, larva, pupa, and adult. The larva usually is different in form from the adult. See simple metamorphosis.
Complete metamorphosis occurs in four stages. It begins with an egg, then the egg hatches into a larva. At this stage, it's basically an eating machine and doubles its weight over two times every single day.
Because the tarnished plant bug has incomplete metamorphosis, the nymphs resemble adults without wings. Newly hatched nymphs are about 1 mm (0.04 in.) long and remain greenish throughout their five stages, or instars.
Larva (pl. larvae)-The immature form of insect that develops through the process of complete metamorphosis, including egg, several larval stages, pupa, and adult. In mites, the first-stage immature is also called a larva.
pupa. The nonfeeding, inactive stage between larva and adult in insects with complete metamorphosis.
pupate. To molt from the larval stage to the pupa.
pustule. Small blisterlike elevation of epidermis from which spores emerge.
How It Works: Upsets the insects hormonal system and prevents it from developing to its mature stage. Most effective on immature insects and species that undergo complete metamorphosis.
Pros: Non-toxic to humans ...
 See also: Insect, Metamorphosis, Plant, Larva, Stage
  
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