The third stage in mosquito and other endopterygote insect development, emerging when the last larval instar shed its skin. Pupae swim but do not feed.
The stages of development through which a plant or animal passes during its life. For mosquitoes these stages are: egg, larva, pupa, adult. Normally, development of nematodes included four moults and five successive stages as follows: Adult eggs • (fourth moult) ¯ • Fourth-stage larva First-stage larva • (third moult) (first moult) • Third-stage larva ¬ Second-stage larva (second moult) Generally, there are two types of life cycle for nematodes: direct and indirect types. 1. Direct Life Cycle: requires no intermediate host, after hatching from the eggs the larvae develop in the open from free-living to infective stages and gain access to the definitive host by mouth or penetration through skin. 2. Indirect Life Cycle: requires one or two intermediate hosts for development to infective stage.... life cycle
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