. "820857" . "Gerris aptera" . . _:b76152740 . _:b76152740 . "Schummel, 1832" . "9503896" . . . _:b76152740 "GBIF id" . _:b76152740 "9503896" . . _:b76152740 . "Gerris aptera" . . . "Gerris aptera Schummel, 1832" .