saucer bug
noun
1- a disc-shaped predatory water bug which lives in muddy ponds and breathes by means of an air bubble around the body潜蝽。
1.1
- Ilyocoris cimicoides, family Naucoridae, suborder Heteroptera.拉丁名Ilyocoris cimicoides, 潜蝽科, 异翅亚目。