INSIGHT PEST LEARNING CENTER
Cockroaches 101: Identification,
Risks & Prevention Tips
What Do These Cockroaches Look Like?
- Size: 1.5 to 2 inches—the largest common species
- Color: Reddish-brown with a yellowish figure-eight behind the head
- Wings: Yes—can glide short distances
- Where You’ll Find Them: Basements, crawl spaces, sewers, and other moist, dark areas
- Size: About 1 inch
- Color: Shiny black or dark reddish-brown
- Wings: Present, but they do not fly
- Where You’ll Find Them: Drains, leaky pipes, damp basements—extremely moisture-dependent
- Size: ½ to ⅝ inch—smallest of the group
- Color: Light brown or tan with two dark stripes behind the head
- Wings: Yes, but rarely fly
- Where You’ll Find Them: Kitchens, bathrooms, behind appliances—near food and water sources
- Size: About 1.25 inches
- Color: Uniform dark brown or mahogany
- Wings: Fully developed—good fliers
- Where You’ll Find Them: Outdoors, in mulch, attics, garages—drawn to lights and moisture
Fun Fact: The German cockroach is the most common indoor cockroach in the U.S., while the Smoky Brown is often mistaken for the American cockroach because of its size..
Seasonal Cockroach Behavior
Cockroaches are year-round pests, but their activity and indoor presence shift with the seasons. In spring and summer, warmer temperatures and higher humidity allow populations to grow rapidly. You’re more likely to see American and smoky brown roaches outdoors or sneaking inside in search of cooler, damp spaces like basements and bathrooms.
As temperatures drop in fall, roaches begin moving indoors to escape the cold, especially species like German cockroaches, which thrive in heated kitchens and bathrooms. This is when infestations often go unnoticed, as roaches hide in wall voids and behind appliances.
In winter, cockroaches stay active indoors where it’s warm, continuing to breed and feed. Without active pest control, their numbers can surge by spring, turning a few sightings into a full-blown infestation.
Insight Tip: Year-round control is crucial. Seasonal shifts often push cockroaches indoors, where they multiply quickly and become harder to eliminate without professional help.
Take Control With Insight Pest Solutions
Cockroaches are tough survivors, but they’re no match for knowledge and professional support. With the right prevention tactics and pest control strategy, you can enjoy a pest-free home.
Spotted these pests around your home? Contact Insight Pest Solutions today to schedule your next pest control service!
