Whenever a bug pops up in your home, it’s important to properly identify it. Some insects are mistaken for one another including cockroaches and water bugs. Though people refer to these bugs as the same thing and they can look similar, they are two different insects. We’ve gathered information about cockroaches and water bugs so that you’ll be able to identify them.
What Do Cockroaches Look Like?

There are different cockroach species, and they vary in size and color. Cockroaches can grow between 1/2"–2", and they are oval in shape. Their bodies are flat with a brown or reddish-brown coloring. Cockroaches have long antennae and a small head. Baby cockroaches or cockroach nymphs look like smaller versions of adult cockroaches.
What Do Water Bugs Look Like?

Water bugs are larger and darker than cockroaches, ranging from dark brown to black. Most water bugs are about 2" in length. Some species can be larger like the giant water bug that grows up to 4". These bugs are aquatic insects that are flat and have paddle-like legs that help them swim. Unlike cockroaches, water bugs do not have antennae.
Where Do Cockroaches Live?

Cockroaches prefer dark, damp environments and often seek shelter in homes. They make their way to bathrooms, kitchens, basements, and laundry rooms. These rooms provide the shelter, food, and moisture they are looking for. Cockroaches can squeeze into small cracks and crevices in walls, ceilings, baseboards, and trim. They also hide under appliances, in cabinets, and in pipes.
Where Do Water Bugs Live?

As their name suggests, water bugs like to be in or near water. They are usually found close to bodies of water such as ponds and lakes. Water bugs are known to hide in vegetation close to sources of moisture. Since these pests are aquatic, they aren’t common home invaders. However, they do occasionally make their way indoors and are attracted to outdoor lights at night. Backyards with bodies of water, including swimming pools, can be attractive to them too.
What Do Cockroaches Eat?

Cockroaches are scavengers that eat many different things. If they can find food or drink residues in your home, they will eat them. Meat and grease can be attractive to them. They will also eat sweets and starches. These pests will feed on your pet’s food too. Cockroaches will eat other things besides crumbs including plant material, paper, cardboard, and insects.
What Do Water Bugs Eat?

Water bugs are predators that hunt for their food. They have mouthparts that are designed for piercing and sucking. Water bugs feed on insects and small organisms in water. The giant water bug can eat larger organisms such as fish and tadpoles. When a water bug pierces their prey, it injects venom that causes paralysis.
Are Cockroaches Dangerous?

Cockroaches don’t bite humans or pets, but you still won’t want them living in your home. As cockroaches move around in unsanitary areas, they pick up debris and carry it on their body. They can contaminate food and food prep areas like your counters and tables. Cockroach infestations can become quite large, making it difficult to get rid of these pests.
Are Water Bugs Dangerous?

Water bugs aren’t considered dangerous bugs. However, they can bite if they feel threatened. The bite will be painful, but it isn’t harmful. Water bugs aren’t known to infest homes and typically aren’t classified as a pest.
How to Prevent Cockroaches & Water Bugs

Keeping any pest out of your home starts with implementing preventative measures. You’ll want to focus on minimizing attractants and removing potential points of entry.
- Seal Entry Points: Look for cracks or holes where bugs could enter your home. Common entry points include near doors, windows, and your home’s foundation. You can use caulk or steel wool to seal the holes.
- Minimize Moisture: Both cockroaches and water bugs are attracted to moisture. Make sure your pipes and faucets are working properly without any leaks. Remove stagnant water in your home and around your property.
- Keep Your Home Clean: Cleaning will help to minimize food sources for cockroaches. Sweep, vacuum, mop, and wipe down counters regularly. Take out your trash and keep your sink free of dirty dishes.
- Change Your Outdoor Lighting: Water bugs are attracted to outdoor lighting, and white lights are more attractive than yellow lights. Swapping your light bulbs for warmer hues can help to keep pests away.
Cockroaches and water bugs have similar characteristics, but there are ways to tell these bugs apart. Knowing what to look for will make it easier to identify them. If you’re dealing with cockroaches, our Roach Killer Gel Bait can help. It attracts and kills most common large and small cockroaches.