pupa

音标发音

During the pupa stage, they do not eat, but do sit at the surface and breath air through two small tubes.
在蛹阶段，不会摄取食物，但在水面游动时会摄取，靠两个细小的呼吸角呼吸。
The casing is nearly airtight, which helps protect the vulnerable egg (and later larva, then pupa) from flooding or excessive dryness or hoofed animals.
这样外层就几乎密封好了，可以保护脆弱的蜂卵（再然后是幼虫和蛹）免受洪水、干旱和有蹄动物的伤害。
Not much has been found to replace them, though the southern riverbank sports The Sage, a silver, pupa-shaped music venue, and the BALTIC Centre for Contemporary Art.
尽管在泰恩赛德南部河岸有一个光亮的蛹形音乐表演场地——圣盖兹特音乐厅，以及波罗的海当代艺术中心，但已经没有多少能取代他们了。

And the office of queen is usually occupied by the first female bee in a nest to emerge from its pupa in spring.
ECONOMIST: Guarding one’s privileges
Would-be submitters must be able to fabricate MEMs that can be implanted into bugs at the pupa stage for integration into biological systems during development, and must prove that they can guide their creations to within three meters of a target from a minimum distance of 100 meters.
ENGADGET: DARPA solicits bids for insect cyborgs

an insect in the stage of development before it becomes an adult, during which it is contained in and protected by a hard covering called a cocoon and does not move

A pupa is an insect that is in the stage of development between a larva and a fully grown adult. It has a protective covering and does not move.

蛹
The characteristics of it’s egg,larva,pupa,adult are introduced.
介绍了卵、幼虫、蛹、成虫的形态特征。
生物学
蛹