又名水龟虫，水龟虫外形长得像龙虱, 和龙虱生活在同一水域生态环境，体呈流线型、背腹面拱起，但体背比龙虱更凸出一些，体色比龙虱更深一些（近乎黑色），腹面较平。
和水甲虫总是游在他后面。
博物馆自己最近的发现关系到水甲虫，它的雄性不喜欢别人说不。
The museum's own most recent discovery concerns the humble water beetle, the male of which does not like to take no for an answer.
水甲虫，又称为“龙虱”，常常和大蒜、生姜一起炒熟，作为小菜出售。
The water beetle, also known as the 'predacious diving beetle', is often Fried with garlic and ginger and sold as a side dish.
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