1. Any of various insect larvae that live and feed within a leaf, including caterpillars, sawfly larvae, beetle and weevil grubs, and dipteran maggots.
   许多在叶中生活并取食的昆虫幼虫的统称，包括毛虫、叶蜂幼虫、甲虫和象甲虫以及双翅类昆虫的蛆。
2. This is the first reliable trematothoracin sawfly discovered in China and in the Jurassic Period.
   这是首次在我国发现可靠的陷胸茎蜂化石，也是该亚科在侏罗纪的首次报道。

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