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Crab Spider

Mecaphesa asperata

Crab Spiders are clever little hunters that can change color to blend in with flowers. They wait patiently for their food to come by.

Habitat: Flowers and gardens

Appearance

The Crab Spider has a flattened body with large, powerful front legs that are often held outstretched. They are frequently camouflaged in white, yellow, green, or brown, allowing them to perfectly blend with flowers, leaves, or bark. Its crab-like posture and often broad abdomen make it visually distinct from many other spiders.

KingdomAnimaliaPhylumArthropodaClassArachnidaOrderAraneaeFamilyThomisidaeGenusMecaphesa
Crab Spider
wildlife trait badgecamouflaged trait badgeambush_predator trait badgecoastal trait badge
Crab Spider

Category

Insect

Rarity

Common

Danger

2/5

Snaps

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Interesting facts

Crab spiders are patient hunters, waiting perfectly still for hours to catch a meal!

The female crab spider is often much, much larger and stronger than the tiny male!

They use their strong front two pairs of legs like a trap to snatch unsuspecting insects!

Unlike most spiders, many crab spiders do not spin webs to catch their prey!

Special abilities

Ability

Master of Disguise

Crab Spiders can change their body color over several days to perfectly match the flowers or leaves they hunt on, helping them ambush prey unnoticed.

Ability

Sideways Scuttle

Crab Spiders have specialized leg joints that allow them to walk forwards, backward, and rapidly sideways, which helps them maneuver quickly for hunting or escape.

Ability

Venomous Trap

Crab Spiders possess a mild venom that helps them quickly subdue their insect prey, ensuring they don't escape after being captured by their powerful front legs.

Measurements & details

Size
2-10 mm
Lifespan
60-365 days
Leg Count
8

Diet & Feeding

Crab spiders are tiny hunters that love to eat other insects they catch on flowers!

Primary Foods

  • bees
  • flies
  • butterflies
  • moths

Foraging Method

  • Ambush

Ecological connections

hunts

Honeybee

Apis mellifera

Snatch bees visiting flowers for nectar.

hunts

Hoverfly

Syrphus ribesii

Ambushes flies that land on flowers.

eaten by

Great Tit

Parus major

Small birds will spot and eat them.

eaten by

Praying Mantis

Mantis religiosa

Larger predatory insects might catch them.

Traits

Also known as

Flower SpiderGoldenrod Spider

Safety

Danger

2/5

Do not touch or pick up. Some insects sting or bite. Ask an adult for help.

Frequently Asked Questions

How big is Crab Spider?

2-10 mm

How long does Crab Spider live?

60-365 days

What does Crab Spider eat?

Crab spiders are tiny hunters that love to eat other insects they catch on flowers!

Where is Crab Spider usually found?

Flowers and gardens

How does Crab Spider hunt?

Ambush

How many legs does Crab Spider have?

8

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