The Spiny Backed Orb Weaver Spider
Gasteracantha, commonly known as the Spiny backed orb weaver spider, is a genus of spiders. These spiders can be easily distinguished from others because of their colorful appearance. They are usually harmless to humans but can cause a nuisance by weaving webs around places in our home.
HOW TO IDENTIFY SPINY BACKED ORB WEAVER SPIDERS
These spiders have spines protruding from their abdomens and have a crab-like shell. The females have white abdomens with black spots and big red spines. The males can have a gray abdomen with white spots and lack the big spines, and are also smaller in size.
Appearance, Behavior, Signs
These spiders are very colorful in appearance. They have white abdomens with black spots and red spines protruding from the edge of their black legs. Their usual size can range from ¼ to ½ inch. Some species might have yellowish abdomens with white spots and black spines.
These pests are usually harmless to humans but can create large webs and multiply quickly. They feed on some insects that can cause damage to crops so these spiders are generally considered to be useful.
Spiny backed orb weaver spiders are mainly found in the edges of woodlands, or gardens. They frequently weave their webs on the edges of gardens, window corners, door corners or porches.
The frequent appearance of these spiders, their webs, and egg sacs can be the most common sign that your place has been infested with the pests.