
Community identification
Cross orb-weaver (garden orb-weaver)
Araneus diadematus
- Order & Family
- Araneae; Araneidae (orb-weaver spiders)
- Size
- Adults are typically 5–13 mm long, with females substantially larger than males; leg span may reach about 25 mm.
Natural Habitat
Gardens, woodland edges, shrubs, and buildings across much of the Northern Hemisphere. It commonly builds orb webs in vegetation or around windows and other structures.
Diet & Feeding
A predator of flies, moths, mosquitoes, and other small arthropods. It captures prey in sticky orb webs, then immobilizes and consumes them externally.
Behavior Patterns
Mostly nocturnal or crepuscular, often resting head-down at the web’s hub or in a nearby retreat. Females produce an egg sac in autumn; adults commonly die after reproduction, while young overwinter.
Risks & Benefits
Harmless to people and beneficial as a natural controller of flying insects. Bites are rare and generally cause only brief, localized irritation.