The Atlas of the Predaceous Water Beetles is now available (the second volume is in press): Foster, G.N. et al., (2016) Atlas of the Predaceous Water Beetles (Hydradephaga) of Britain and Ireland. FSC Publishing. This atlas includes the predaceous water beetles, or Hydradephaga – the whirligig beetles (Gyrinidae), the crawling water beetles (Haliplidae), one species of squeak beetle (Paelobiidae), the burrowing water beetles (Noteridae), and the diving beetles (Dytiscidae). One hundred and fifty-four species are reviewed here, 152 of them from Britain, 113 from Ireland, and 72 from the Isle of Man, with an additional two recorded only from the Channel Isles.
Click here for more information.: Atlas of the Predaceous Water Beetles (Hydradephaga) of Britain and Ireland – FSC