Bug Identifier
Black-and-yellow garden spider (writing spider)
Community identification

Black-and-yellow garden spider (writing spider)

Argiope aurantia

Order & Family
Araneae, Araneidae
Size
Females are about 19–28 mm in body length; males are much smaller, about 5–9 mm.
See this bug in the Encyclopedia

Natural Habitat

Sunny gardens, meadows, and field edges with tall vegetation for anchoring its web.

Diet & Feeding

Catches and eats flying insects, especially grasshoppers, flies, and bees, in a sticky orb web.

Behavior Patterns

Builds a large vertical web, often with a zigzag silk band near its center; the female typically rests head-down in the web. Adults are most noticeable in late summer and fall.

Risks & Benefits

Not aggressive, and bites are uncommon; a bite may cause temporary, mild pain. It benefits gardens by eating insect pests.