December 9, 2016 10:21 am
Hi I was hoping you could identify this spider. There are a lot of them that live out in the field. As you can see in the 2nd photo they often have thick webs in a zig-zag extending from where they put their legs. Thanks.
This is an Orbweaver, and it really resembles a North American species Argiope argentata, the Silver Argiope, which BugGuide states is found in: “CA, TX, FL (mostly in southernmost parts of those states). There’s also one data point from AZ.” The zigzag web you mention is known as the stabilimentum, and many scientists believe it helps to camouflage the spiders in the web, and the presence of the stabilimentum gives spiders in the genus Argiope the common name Writing Spiders. According to Colnect, the Silver Argiope was pictured on a stamp from Uruguay in 2009, which is good evidence the range extends well into South America. According to EcoRegistros, the species is known as the Araña Tigre or Tiger Spider for our English only speakers. We will be postdating this submission to go live at the end of the month while our staff is away from the office for the holidays.