Spinybacked Orb Weaver (Gasteracantha cancriformis)

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Gasteracantha_cancriformis - Wikipedia
spinybacked orbweaver - University of Florida
Spiny Orb Weaver - Texas A&M

On October 7, 2013, I found spiny-backed orb weavers building webs in front of my house. That year, they were usually around the garage door.

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They also come in yellow.

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