Spinybacked Orbweaver

What it is

Gasteracantha cancriformis is a species of orb-weaver spider (family Araneidae). It is widely distributed in the New World.

Where and when to find it

Habitat

Common in gardens, forests, and shrubby areas in the southeastern United States.

How to find it

Look for their small, strong webs often at eye level or higher between plants. They are usually brightly colored with black spikes.

Best time of day

During the day; summer and fall.

How it lives

What it eats

Flies, mosquitoes, small moths, and other flying insects.

What eats it

Birds, wasps, lizards.

Worth knowing

• The spines on its abdomen might help protect it from predators like birds.
• Female Spinybacked Orbweavers are much more colorful and spiky than the males.
• They often add little tufts of silk decorations to their webs.
• They are sometimes called 'crab spiders' because their abdomen is wide and somewhat flattened.
• Despite their spiky appearance, they are harmless to humans.
• Their bright colors may warn predators that they don't taste good.

Why it matters

Spinybacked Orbweavers help control flying insect populations, keeping gardens and natural areas healthy.