
Community identification
Black-and-yellow garden spider (writing spider)
Argiope aurantia
- Order & Family
- Araneae, Araneidae (orb-weaver spiders)
- Size
- Females are about 19–28 mm (0.75–1.1 in) in body length; males are much smaller, around 4–8 mm.
Natural Habitat
Sunny, open vegetation such as gardens, meadows, field edges, and shrubbery. It builds large orb webs among tall plants.
Diet & Feeding
Carnivorous; it captures flies, grasshoppers, bees, and other insects in its sticky web, then immobilizes them with venom and wraps them.
Behavior Patterns
The spider typically rests at the web’s center, often in a zigzag silk decoration called a stabilimentum. It is generally solitary; adults mate in late summer, and females produce egg sacs before dying in autumn.
Risks & Benefits
Not considered dangerous to people; bites are uncommon and usually cause mild, temporary irritation. It benefits gardens by consuming many pest insects.