Crab Spider

Scientific Name: Family Thomisidae

Order & Family: Araneae, Thomisidae

Size: 4mm to 10mm (females are generally larger than males)

Crab Spider

Natural Habitat

Found on flowers, leaves, under bark, or on the walls of houses. They prefer areas where they can camouflage effectively.

Diet & Feeding

Carnivorous; they ambush pollinators like bees, flies, and butterflies as well as other small insects.

Behavior Patterns

They are sit-and-wait predators that do not spin webs to catch prey. They move sideways or backwards like crabs and some species can change color to match their surroundings.

Risks & Benefits

Benefits the ecosystem by controlling insect populations. They are generally harmless to humans; their venom is not medically significant and they are not aggressive.

Identified on: 3/9/2026