Difference between revisions of "Imago"
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==Origin== | ==Origin== | ||
New Latin, from [[Latin]], image | New Latin, from [[Latin]], image | ||
| − | *[ | + | *[https://en.wikipedia.org/wiki/18th_century 1797] |
==Definitions== | ==Definitions== | ||
*1: an [[insect]] in its final, adult, sexually [[mature]], and typically winged state | *1: an [[insect]] in its final, adult, sexually [[mature]], and typically winged state | ||
*2: an [[idealized]] mental [[image]] of another person or the [[self]] | *2: an [[idealized]] mental [[image]] of another person or the [[self]] | ||
==Description== | ==Description== | ||
| − | In [[biology]], the '''imago''' is the last [[stage]] an [[insect]] attains during its [[metamorphosis]], its process of [[growth]] and development; it also is called the imaginal stage, the stage in which the insect attains maturity. It follows the final [ | + | In [[biology]], the '''imago''' is the last [[stage]] an [[insect]] attains during its [[metamorphosis]], its process of [[growth]] and development; it also is called the imaginal stage, the stage in which the insect attains maturity. It follows the final [https://en.wikipedia.org/wiki/Ecdysis ecdysis] of the immature [https://en.wikipedia.org/wiki/Instar instars]. |
| − | In a member of the [ | + | In a member of the [https://en.wikipedia.org/wiki/Apterygota Ametabola] or [https://en.wikipedia.org/wiki/Hemimetabolism Hemimetabola], in which [[metamorphosis]] is "incomplete", the final ecdysis follows the last immature or nymphal stage. In members of the Holometabola, in which there is a [[pupal]] stage, the final ecdysis follows emergence from the pupa, after which the metamorphosis is complete, although there is a prolonged period of maturation in some [[species]]. |
The ''imago'' is the only stage during which the [[insect]] is sexually [[mature]] and, if it is a winged species, has functional wings. The imago often is referred to as the adult stage. | The ''imago'' is the only stage during which the [[insect]] is sexually [[mature]] and, if it is a winged species, has functional wings. The imago often is referred to as the adult stage. | ||
| − | Members of the order [ | + | Members of the order [https://en.wikipedia.org/wiki/Mayfly Ephemeroptera] (mayflies) do not have a pupal stage, but they briefly pass through an extra winged stage called the [https://en.wikipedia.org/wiki/Subimago subimago]. Insects at this stage have functional wings but are not yet sexually mature. |
| − | The [[Latin]] plural of ''imago'' is imagines, and this is the term generally used by [ | + | The [[Latin]] plural of ''imago'' is imagines, and this is the term generally used by [https://en.wikipedia.org/wiki/Entomology entomologists] – however, imagoes is also acceptable. |
[[Category: Biology]] | [[Category: Biology]] | ||
Latest revision as of 00:16, 13 December 2020
Origin
New Latin, from Latin, image
Definitions
- 1: an insect in its final, adult, sexually mature, and typically winged state
- 2: an idealized mental image of another person or the self
Description
In biology, the imago is the last stage an insect attains during its metamorphosis, its process of growth and development; it also is called the imaginal stage, the stage in which the insect attains maturity. It follows the final ecdysis of the immature instars.
In a member of the Ametabola or Hemimetabola, in which metamorphosis is "incomplete", the final ecdysis follows the last immature or nymphal stage. In members of the Holometabola, in which there is a pupal stage, the final ecdysis follows emergence from the pupa, after which the metamorphosis is complete, although there is a prolonged period of maturation in some species.
The imago is the only stage during which the insect is sexually mature and, if it is a winged species, has functional wings. The imago often is referred to as the adult stage.
Members of the order Ephemeroptera (mayflies) do not have a pupal stage, but they briefly pass through an extra winged stage called the subimago. Insects at this stage have functional wings but are not yet sexually mature.
The Latin plural of imago is imagines, and this is the term generally used by entomologists – however, imagoes is also acceptable.
