gall midge
noun
1- a small, delicate fly which induces gall formation in plants or may cause other damage to crops瘿蚊。
1.1
- Family Cecidomyiidae: numerous genera and species, including the saddle gall midge (Haplodiplosis marginata), which is a pest of cereals.瘿蚊科：众多属, 众多种, 包括对谷类有害的鞍瘿蚊（拉丁名Haplodiplosis marginata）。