It's not a butterfly — it's a moth! Learn how to identify the promethea silk moth, a beautifully patterned backyard visitor.

As humans drop off to sleep, the invisible world of moths comes to life. Across the planet, billions of the insects take flight on their nocturnal errands. Few places host more species than California ...

Both new species have unique morphology characteristics, especially in wing pattern and genitalia structure, the main markers in moth identification.