Ant Crab Spider

Scientific Name: Synema globosum

Order & Family: Araneae, Thomisidae

Size: 3-8 mm (females are larger than males)

Ant Crab Spider

Natural Habitat

Found on flowers and foliage in gardens, meadows, and woodlands, where they ambush prey.

Diet & Feeding

Strictly carnivorous, feeding on a wide variety of insects, especially pollinators visiting flowers, such as bees, flies, and other small insects.

Behavior Patterns

These spiders are ambush predators. They do not build webs for catching prey but instead wait camouflaged on flowers or leaves, striking rapidly when an unsuspecting insect comes within reach. They are known for their ability to change color slowly (over several days) to match their surroundings, aiding in camouflage.

Risks & Benefits

Generally harmless to humans. Their bite is not considered medically significant. They benefit ecosystems by controlling insect populations, including some common garden pests.

Identified on: 9/22/2025