. _:b75760090 . "7884" . "Hydrometridae" . . "Hydrometridae" . "Hydrometridae Billberg, 1820" . _:b75760090 . _:b75760090 "7884" . . . . . "Billberg, 1820" . _:b75760090 . . . _:b75760090 "GBIF id" . . "Hydrometridae" . "185056" .