Wasp and fly wings are made from two compressed layers of transparent chitin, with light bouncing off both layers and mixing to produce color.
果蝇和黄蜂的翅膀其实是由两层压缩的透明甲壳质组成，每层甲壳质都能够在内部对光线进行折射，从而产生出各种色彩。
Unless an infected larva kills the wasp egg, it hatches and the wasp larva eats its way out from inside the fruit fly larva, killing it.
除非受感染的果蝇幼虫杀死黄蜂卵，否则当黄蜂卵孵化出来后，黄蜂幼虫将会由内而外吞噬果蝇幼虫，将其杀死。
To the major natural enemies of apple like the Chrysopa, the aphid fly eats, the ladybug, the ichneumon wasp, the trapping and killing capacity is 208, 38 and 36 and 99 respectively.
对苹果园主要天敌如草蛉类、食蚜蝇类、瓢虫类和姬蜂类的诱集量分别为208头、38头、36头和99头。
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