BEETLES OF DUNE LAKES AND PONDS IN NORTHEASTERN NEW SOUTH WALES

Forty‐four species of aquatic Coleoptera are recorded, many for the first time, from coastal northeastern N.S.W. Only four (Hyphydrus elegans (Montrouzier), Megaporus nativigi Mouchamps, Rhantus suturalis (Macleay) and Gyrinus convexiusculus Macleay) are relatively common, most of the remainder being recorded only once or twice. Few species show any preference for the ecological type of dune lake/pond inhabited. The number of species per locality is apparently independent of the presence of possible fish predators, but is at least partly related to habitat heterogeneity.