
Community identification
Spiny-backed orb-weaver (also called the spiny orb-weaver)
Gasteracantha cancriformis
- Order & Family
- Araneae, Araneidae
- Size
- Body about 5–10 mm long; females are larger than males.
Natural Habitat
Gardens, woodland edges, and other places with shrubs or trees; common in the Americas, especially warm regions.
Diet & Feeding
Catches small flying insects, including flies and mosquitoes, in a circular web.
Behavior Patterns
Females build orb webs and rest at the center; their hard, spiny abdomen helps deter predators. They are generally solitary and not aggressive.
Risks & Benefits
Harmless to people and not medically significant. It helps control insect populations; its web may be inconvenient around buildings or paths.