Water Beetles

Dytiscidae

(after Hangay & Zborowski 2010): Dytiscids are distinctively boat-shaped beetles that are dorsally and ventrally convex and range from 1-40mm in length. They are generally black, brown, or dark olive-green in colour, but some possess lighter coloured marginal markings and/or pattern on the prothorax and elytra. The antennae are longer than the width of their head and their hind tarsi are flattened and fringed with stout swimming setae. Their tarsal formula is 5-5-5.