WGerrini
WAquarius (genus)
WAquarius najas
WAquarius nebularis
WAquarius remigis
WGerris
WGerris argentatus
WGerris costae
WGerris lacustris
WGerris lateralis
WGerris marginatus
WGerris thoracicus
WHebrus ruficeps
WLimnogonus
WLimnogonus franciscanus
WLimnoporus
WLimnoporus canaliculatus
WLimnoporus dissortis
WLimnoporus notabilis
WMicrovelia pygmaea
WMicrovelia reticulata
WNeogerris
WNeogerris hesione
WTenagogonus
WVelia saulii