During the pupa stage, they do not eat foods but do sit at the surface and breathe air through two small tubes.

在蛹阶段，它们不吃食物，但在水面游动时会靠两个细小的管道呼吸空气。

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In their pupa stage, they resemble broken twigs.

在蛹的阶段，它们象断开的小枝条。

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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。

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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