Helophorus Helophorus auricollis Helophorus linearoides Helophorus grandis Helophorus lineatus Helophorus sempervarians Helophorus tuberculatus Helophorus linearis Helophorus orientalis Helophorus eclectus Helophorus sibiricus Helophorus nitiduloides List of water beetle species recorded in Britain Emendation (zoology) List of the prehistoric life of Pennsylvania Curry and Hay Moors List of the prehistoric life of Ohio Allen Confluence Gravels List of beetles of Ireland Hydrochus List of the Cenozoic life of Alaska Hydrophilidae List of the prehistoric life of Alaska List of the prehistoric life of Colorado Coleoptera in th…

he 10th edition of Systema Naturae List of the Cenozoic life of Washington River Tone List of the Cenozoic life of Colorado Archostemata 2012 in arthropod paleontology 2014 in paleoentomology List of species and habitats of principal importance in England