Crab Spider Diseases

Crab spiders, Family Thomisidae, are named for their close resemblance to crabs. The front legs of crab spiders are longest, and many crab spiders move sideways rather than backwards and forwards, giving them a crablike movement. Their bodies are also flat like a crab's.

Crab spiders are best known for their unique ability to blend in with their surroundings. Some species change colors and some exhibit markings that resemble specific plants. Some species appear like blades of grass, while others may blend in with the bark of trees.

Crab spiders are not known to transmit diseases to humans. Although crab spiders are venomous spiders, their bite is considered relatively harmless to humans. However, if medical concerns arise, medical attention should be sought.

Orkin can address any issues with Crab Spiders, California Crab Spiders, Grass Crab Spiders, Flower Crab Spiders, and Michigan Crab Spiders.

Learn more about Giant Crab Spider Facts


Spider Home Protection

Daddy Longlegs vs. Harvestmen Spider Facts | Orkin

Daddy longleg illustration


Tarantula illustration

How to Identify Black Widow Spiders | Spider Facts | Orkin

Black widow spider illustration

How to Identify Spider Bites | Spider Bite Facts | Orkin

Are these daddy long-leg spider droppings?


We have a lot of them outside of our house, and it seems that where they hang out there are now tiny brown spots on our siding. Do they leave marks or feces behind?

How do I keep spiders out of my home?


How do I keep spiders out of my home?

Where did Joro Spiders Come From | Joro Spider Infestation | Orkin

Image coming soon

Brown recluse spider prevalence?

Difference between a cellar spider and a brown recluse spider?


What's the difference between a cellar spider and a brown recluse spider?

How much does it cost to get an exterminator for spiders?


I live in a house built in 1951 and have a big spider problem — I hate spiders! How much would a solution cost?

Connect with Us

Our customer care team is available for you 24 hours a day.


Find a Branch

Our local Pros are the pest experts in your area.

Get a Personalized Quote

We will help you find the right treatment plan for your home.



Pest ControlTermite ControlPrevent and Protect


Browse All Pests

© 2022 Orkin LLC

Terms of UsePrivacyAccessibility StatementCareers