Different Types of Cockroaches in Australia | Critter Busters
Australian Cockroach

What are the Different Types of Cockroaches in Australia?

You have probably read somewhere that there are over 3,500 species of cockroaches in Australia, right? Well that statistic is absolutely true. However, only a small handful of cockroach species are actually considered a pest. In fact, you can count the number on just one hand – three to be exact.

So, which of the three types of cockroaches are most common in Australia? To pique your curiosity they are the German, Australian and American cockroach. Each of these pesky critters have their own unique appearance, habits and lifecycle. By knowing how each type of cockroach looks and behaves, you can put in place preventative measures and have a better chance of fighting off an infestation.

Looking for reliable cockroach control service nearby in Sydney, call us @ (02) 4733 6943

Keep reading to find out what makes each type of cockroach in Australia unique:

German cockroach :

What do they look like?

Starting with the German cockroach, adults have a distinct light brown or tan colour, and two long black stripes from the head down to the upper abdomen. On the other hand, the young German cockroach is nearly completely black, yet they still have the recognizable stripes too.

As the smallest cockroach on this list, they can grow to a length of 13-16 mm.

Habits –

These pesky critters prefer to stay indoors where it’s warm.

Due to their small size the German cockroach can hide in very small spaces. These include tiny cracks and crevices found in the wall, drainage pipes, furniture, bags, and boxes. Furthermore, they have even been known to seek warmth in electronic devices after being used.

To access food and water, they may search nearby garbage bags, leftover unsealed food, kitchen cabinets, pantries, and underneath the sink.

Life-cycle –

Like most cockroaches, the German cockroach can breed in rapid numbers. Each egg case can have anywhere from 30 to 40 eggs and takes only 1-2 days to hatch. Once the egg hatches, it takes approximately 60 to 220 days for a nymph to become a full-grown adult.

Australian cockroach :

What do they look like?

The Australian cockroach is characterised by a dark reddish-brown colour, including a yellow mark on their thorax. Bigger than the German cockroach, the Australian cockroach can reach lengths up to 23-35mm, and their wings can reach up to 25mm in length too.

Habits – 

These are simple creatures. Basically if there is warmth, moisture, food, and shelter – an Australian cockroach could show up to the party.

If your building is particularly humid, the moist conditions can increase the risk of infestation. Most Aussie cockroaches enter the property through open windows and doors, including small cracks and holes.

Lifecycle – 

Expect to see these creatures around for a while. Why? Because the average egg case of an Australian cockroach contains up to 24 embryos. Worse still, a female can lay about 20 to 30 egg cases during their lifetime.

American Cockroach :

What do they look like?

Just like the Australian cockroach, the American cockroach has a similar reddish brown colour, but also a light tinge of mahogany to set it apart. However, that is where the similarities end. Because the American cockroach simply trumps the Australian cockroach in terms of size, reaching lengths of up to 50mm.

Habits – 

In warm weather, the American cockroach prefers to dwell outdoors. These include warm and damp areas such as garden beds, underneath the mulch, inside the outdoor barbecue, and outdoor entertainment furniture. While outdoors, they eat a variety of natural products including leaves, fungi, wood particles and algae.

But when winter comes around, they head inside. Once indoors they seek food, warmth and shelter in tiny cracks and crevices, pre-owned electronic devices, furniture, under the kitchen sink, and drainage pipes.

Lifecycle – 

When the female cockroach produces an egg capsule, it contains up to 16 individual eggs. Once the eggs hatch, baby nymphs come out and they develop from young to an adult in just under six months.

Got a problem with German, American or Australian cockroaches in your home or business? Call Critter Busters today on (02) 4733 6943 for a free quote.

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