Complex sentence: The widespread, strongly sexually dimorphic and somewhat phenotypically variable Willow Beauty has been described anew time and again by various authors, even as late as the early 20th century, but all these supposedly distinct taxa are nowadays considered to refer to a single species.
Split into simpler sentences: The widespread, strongly sexually dimorphic and somewhat phenotypically variable Willow Beauty has been described anews times and again by various authors, even as late as the early 20th century. But all these supposeddly distinct taxa are nowadays considered to refer to a single species.