Water Beetles are beetles which live on or in the water, especially the somewhat similar Amphizoideae Haliplidae, Dytiscidae, and Gyrinidae, and also the quite different clavicorn Hydrophilidae. The Dytiscus, common in stagnant water, is olive-green above, and oval in shape. The respiratory organs of the perfect insect are not adapted to obtaining air from the water; the creature must therefore come occasionally for air to the surface of the water, where it lies on its back, to expose the openings of its airtubes, which are in the last segment of the abdomen.
Water beetles
Water Beetles are beetles which live on or in the water, especially the somewhat similar Amphizoideae Haliplidae, Dytiscidae, and Gyrinidae, and also the quite different clavicorn Hydrophilidae. The Dytiscus, common in stagnant water, is olive-green above, and oval in shape. The respiratory organs of the perfect insect are not adapted to obtaining air from the water; the creature must therefore come occasionally for air to the surface of the water, where it lies on its back, to expose the openings of its airtubes, which are in the last segment of the abdomen.
