sawfly ['sɔ:ˌflaɪ]

例句:

• Infestations of sawfly larvae often defoliate plants although infestations are usually localised and rarely devastating.
  来自BBC
• 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.
  
• Japanes elm sawfly is a kind of main phyllophagous insect to Ulmus L.
  榆叶蜂是巴盟榆树的主要食叶害虫,发展速度快、食叶量大,危害严重.
  
• When disturbed, the larvae of most sawfly species adopt an S-shaped pose, often raising their rear ends and waving them about.
  来自BBC