Members of the Dineutus species, or large whirligig beetles, are 1/2" long and glossy black in color. They have a small flattened oval shape, and paddle-like hind legs. They have grooved forewings, and swim in circles.
Large whirligig beetles live in ponds, slow moving streams, and lakes. They lay thier eggs on quatic plants and feed off of small insects.
Featured image by Jacob Enos.
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