Well, Charlotte was a black-and-yellow argiope, also known as a writing spider. She is easy to identify because in the middle of her web she weaves a series of thick white zigzags that look like ...

C. Neal McReynolds, Gary A. Polis, Ecomorphological Factors Influencing Prey Use by Two Sympatric Species of Orb-Web Spiders, Argiope Aurantia and Argiope Trifasciata (Araneidae), The Journal of ...