Where Are Your Men?

This is the biggest meal for a Spiny Orb-Weaver (Gasteracantha Cancriformis) that I have ever seen. These female spiders are spinning webs everywhere in my yard so it is difficult to walk around them and not to destroy their hard work. With such a big catch, I wonder if this gal is going into hibernation for a while to enjoy a break from working. I also wonder why I never see a male Orb-Weaver. Don't they work?