Contrary to what the name suggests, the friendly cockroach (Luridiblatta trivittata) is a rude insect that will help itself to your outdoor compost piles. Occasionally, they will enter homes, but it is pretty uncommon. It is also known as the three-lined cockroach due to the dark lines leading up its back. 

Among its many fascinating characteristics, pale bordered field cockroach stands out with its unusual daytime activity, unlike many cockroach species that are primarily nocturnal. This shift exposes pale bordered field cockroach to a wider array of predators, highlighting its vital role as a food source in the ecosystem. Prolific in reproduction, pale bordered field cockroach contributes to soil aeration and decomposition through its feeding and burrowing habits. Notably, it's one of the few species that emits a defensive odor, an unconventional mechanism in cockroach survival.

Capraiellus panzeri is a species of non-cosmopolitan cockroach in the subfamily Ectobiinae: commonly known by its original (genus) name Ectobius panzeri. This European species extends into NW Africa and is localised in southern Britain, where it may be called the lesser cockroach. Recent work indicated that Ectobius panzeri panzeri (i.e. as found in Britain) should be placed in the genus Capraiellus and this has now been confirmed.

Austral ellipsidion is a harmless species of cockroach native Australia and found in New South Wales, the Northern Territory, Queensland, and Victoria. The species was first described in 1863 as Thyrsocera australis by Henri de Saussure.

The bush cockroach, also known as the common ellipsidion, is commonly found in northern parts of Australia, and around Perth and Brisbane as well. They can be found in backyards in between flowers and plant leaves, feeding on pollen and honeydew. Like other cockroaches, they are efficient runners and difficult to catch!