The spider species Araneus diadematus is commonly called the European garden spider, cross orbweaver, diadem spider, cross spider, and crowned orb weaver.
Individual spiders' colourings can range from extremely light yellow to very dark grey, but all A. diadematus spiders have mottled white markings across the dorsal abdomen, with four or more segments forming a cross. The markings are formed in cells filled with guanine, which is a byproduct of protein metabolism.
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