What is a pacific spider that eats the monarch butterfly?

The Pacific spider that preys on Monarch Butterflies is known as the "Pacific spider" or "Araneidae" species, specifically the "Argiope aurantia," commonly known as the black and yellow garden spider. These Spiders are known for their distinctive web patterns and vibrant coloration. While they primarily catch various insects, they can opportunistically capture monarch butterflies when they fly into their webs. This predatory behavior contributes to the intricate balance of the ecosystem, where even iconic species like the monarch can fall victim to predators.