How to Identify Cockroach Species

Even if humanity were to disappear from the Earth, cockroaches would continue to survive for a long time. However, this doesn't mean they should be allowed to freely roam your home indefinitely. To tackle a cockroach infestation, it's essential to first identify which species is living in your home. Many people don't realize that there are actually 4 types of cockroaches found indoors that are classified as pests. Solving the issue becomes much easier once you know which cockroach species you're dealing with.

Estimate the size of the cockroach. Brown-banded cockroaches are about 1 cm long, making them one of the smallest cockroach species. To give you a better idea, imagine a brown-banded cockroach that is slightly smaller than a U.S. penny (19 mm in diameter), not counting its antennae length.

Observe the yellow-brown stripes. Contrary to what you might think, the name 'brown-banded cockroach' actually refers to the yellowish bands on the insect's body. Look for two distinct stripes – a thick one at the end of its abdomen and a thinner one running across its midsection.

Consider the climate where you live. Brown-banded cockroaches typically thrive in hot, dry climates. If you're finding cockroaches in your home but live in a humid area with cooler or average temperatures, it's likely another species of cockroach.

Check nearby water sources. Brown-banded cockroaches aren't fond of water, so they don't typically live near any water sources. If you spot a cockroach near a sink or toilet, it's likely not a brown-banded cockroach.

Notice whether the cockroach can fly. Unlike German cockroaches, brown-banded cockroaches will fly when disturbed. If you see a small cockroach quickly fluttering by, it's most likely a brown-banded cockroach.

Note the size of the cockroach. German cockroaches are slightly larger than brown-banded cockroaches. They can grow up to 1.3 cm long, which is about the size of a U.S. penny (excluding antenna length).

Look for two dark stripes. The most distinctive feature of German cockroaches is the two parallel stripes running from behind their heads to their wings. These stripes are dark brown, sometimes almost black.

Check if the cockroach is near a water source. German cockroaches prefer warm, humid environments. You will often find them in kitchens or bathrooms, hiding around dishwashers or sinks. They are also commonly found in trash bins, where they find most of their food.

Consider the number of cockroaches. German cockroaches are the most abundant cockroach species found in homes. If you feel like cockroaches are taking over your home, it's likely German cockroaches.

Observe the size of the cockroach. The American cockroach is considered the largest species, with a length that can reach up to 5 cm. If you place this cockroach next to a U.S. quarter (which has a diameter of about 2.4 cm), the coin will only cover about three-quarters of the cockroach's length.

Note the color of the cockroach. The American cockroach stands out from other species because of its reddish-brown color with an amber sheen. Most other cockroaches are a dull brown-grey. Check if the cockroach has a reddish tint. Additionally, look for two large, dark spots on its shoulders – the only part of the insect not showing a reddish hue.

Examine the glossy exterior of the cockroach. The American cockroach is also the shiniest species. Its exterior, including the body and wings, can be described as shiny, though not quite elegant.

Consider the diet of this cockroach species. American cockroaches are known to feed on moist food sources, such as human and pet food. This makes them not just a problem for individuals but also a household nuisance. If you spot a large cockroach feeding on your or your pet's food, it's likely an American cockroach.

Check the size of the cockroach. Oriental cockroaches are usually about 2.5 cm long, slightly larger than a U.S. penny. Their bodies are cylindrical, meaning there isn't much difference from head to tail. Female cockroaches are larger than males.

Observe the color of the cockroach. Oriental cockroaches are dark brown. Under certain lighting, they may appear almost black. Besides their distinctive color, they don't have any prominent markings.

Pay attention to the wings of the Oriental cockroach. Female Oriental cockroaches actually don't have wings. Males possess short, broad wings that cover about three-quarters of their body, but even with wings, they are incapable of flight.

Note the environment where you spot the cockroach. Oriental cockroaches can survive the harsh winter outdoors by hiding in moss or other covering materials. Indoors, they prefer dark, damp areas. Specifically, they are often found in pipes and basements that are cool and humid.