Complex sentence: Members of the genus "Ranatra", the most widespread and speciose genus, are sometimes called needle bugs or water stick insects as they are more slender than "Nepa" and feed primarily on invertebrates, but occasionally take small fish or tadpoles.
Split into simpler sentences: Members of the genus Ranatra ", the most widespread and speciose genus, are sometimes called needle bugs or water stick insects as they are more slender than" Nepa. They feed primarily on invertebrates, but occasionally take small fish or tadpoles.