蝴蝶翅膀上的翅脉交错。

The veins of the butterfly's wing interlace.

结果表明，后翅翅脉特征在该族内具有稳定性，在属间和种间不具稳定性，后翅翅脉特征在绿天牛族属级和种级中分类意义不大。

The results show that the taxonomic importance of hind wing venation characters isn't stability in the genera level and species level in Callichromini.

他的研究资料取自人造卫星，牵涉到光合作用的层次、到西非采采蝇翅脉的尺寸。

His research has linked levels of photosynthesis, detected from satellites, to the size of a vein in the wings of west African tsetse flies.

方法用一定浓度的臭氧对家蝇的卵、蛹、成虫作用一定时间，分别观察其成活率及子代的翅脉变异。

Methods Observing the survival rate and filial generation nervure variation of housefly which treated with ozone.

脉翅目脉翅目的食肉昆虫，如蚁狮或鱼蛉，有四个网状翅脉的翅膀和适于咀嚼的口器。

A carnivorous insect of the order Neuroptera, such as the ant lion or dobsonfly, having four net - veined wings and mouthparts adapted for chewing.