
Community identification
Orb-weaver spider (likely barn orb-weaver)
Araneus species, likely Araneus cavaticus
- Order & Family
- Araneae; Araneidae (orb-weaver spiders)
- Size
- Body typically 8–18 mm long; adult females are larger than males, with legs spanning roughly 25–40 mm.
Natural Habitat
Common around buildings, porches, barns, woodland edges, and other sites with sturdy structures for webs. Often hides in crevices by day and occupies its web at night.
Diet & Feeding
Carnivorous; captures flies, moths, mosquitoes, and other flying insects in a sticky orb web, then immobilizes and consumes them.
Behavior Patterns
Mostly nocturnal and generally solitary. It rebuilds or repairs its web regularly, and adults commonly appear near lights where insect prey gathers.
Risks & Benefits
Not considered medically dangerous; bites are uncommon and usually cause only mild, temporary irritation. It is beneficial because it naturally controls nuisance and pest insects.