. "Frontonia vernalis (Ehrenberg) Kahl, 1931" . "Frontonia vernalis" . . "(Ehrenberg) Kahl, 1931" . "Frontonia vernalis" . "996221" . . . . _:b75716157 "7770526" . . _:b75716157 "GBIF id" . _:b75716157 . . "Frontonia vernalis" . . _:b75716157 . "7770526" . _:b75716157 .