Astacidae

例句：

1. 1. The spider was a predator of the Astacidae.
   蜘蛛是甲壳虫的捕食者。
2. 2.The Astacidae is a group of insects that feed on nectar.
   甲壳虫科是一类以花蜜为食的昆虫。
3. 3. The Astacidae are found in various habitats around the world.
   甲壳虫科分布在世界各地不同的栖息地。