Spiny Backed Orb Weaver (Gasteracantha spp.)
Detailing the identifying qualities of the Spiny Backed Orb Weaver, including physical features and territorial reach.
Updated: 9/13/2017; Authored By Staff Writer; Content ©www.InsectIdentification.org
You can look, but don't touch the Spiny-backed Orbweaver spider. Those thorns help keep predators at bay.
The spines on the side of this female spider make it unique and easy to recognize. Males are considerably smaller than females and they lack the spines. There are a variety of species in this genus and colors vary.
Like other orb weavers, it creates a web that is circular in shape, only it has few or no spirals at the center of its web. Each night, a new web is spun to catch small insect prey. The spider stands up-side-down on the web.
Late in the year, the female will lay eggs that will grow throughout winter, hatching spiderlings in the spring. The oval-shaped egg sac is near the web, usually hidden underneath leaves. It may be white, green or yellowish, but it is woven of the spider's silk.