I feel I've neglected the arachnids, and it's about time I posted one for you to identify. This one shouldn't be too difficult. Do you know what it is? Post your answer in a comment if you do, and be sure to come back next Wednesday for another challenge.
Last week's colorful moth was the oleander moth (Syntomeida epilais), or as it's sometimes called, the polka dot wasp moth. Whatever you call it, I'm sure you'll agree that it's a beautiful insect. Congratulations to Bob, Jeff, and Moni for identifying last week's insect correctly!
Photo: Leslie J. Mehrhoff, University of Connecticut, Bugwood.org

Comments
Believe it is Micrathena gracilis – Spined Micrathena one of the orb weavers. Probably a female with all the spines. Love the uniformity of their webs.
I concur. My guess would be Micrathena gracilis- The Spined Micrathena Orbweaver.