Like the golden silk orb weaver, females and males of the Argiope appensa look very different. Females can grow up to nearly two and a half inches in length and can be red, yellow, black, and white.

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 ...