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Argiope aurantia.
It has distinct yellow and black markings on its abdomens. Males range from 5-9mm and females from 19-28mm. Stabilimentum (reinforced area) in web makes a vertical zigzag band above and below the middle of the web. Juveniles make a circular stabilimentum in the center of the web.
The web was built over a pond in a wildlife habitat yard.
An immature will camouflage itself in the stabilimentum, an area of heavy silk: The spiders, both immature and mature hang head down in their webs which have that familiar zigzag pattern.
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