What insects swim under water?

* Beetles: Some species of beetles, such as the diving beetle and the whirligig beetle, are able to swim underwater. They have streamlined bodies and powerful legs that help them propel themselves through the water.

* Bugs: Some species of bugs, such as the water boatman and the backswimmer, are also able to swim underwater. They have long, thin legs and a streamlined body that helps them move quickly through the water.

* Dragonflies: Dragonfly nymphs are aquatic insects that live in ponds, lakes, and rivers. They have long, segmented bodies and powerful jaws that they use to catch prey. Dragonfly nymphs can swim by undulating their bodies or by using their powerful legs.

* Mayflies: Mayfly nymphs are aquatic insects that live in ponds, lakes, and rivers. They have long, slender bodies and delicate wings. Mayfly nymphs swim by using their long legs and tail filaments.

* Stoneflies: Stonefly nymphs are aquatic insects that live in streams and rivers. They have flattened bodies and strong legs that they use to cling to rocks. Stonefly nymphs swim by undulating their bodies or by using their powerful legs.