Orthopteroid Insects
Cockroach Biology
Australian Cockroach
Common Methana
U-marked Methana
Pale Woodland  Cockroach
Oval Woodland Cockroach
Black Woodland Cockroach
Reddish-brown Cockroach
White-tailed Cockroach
Austral Ellipsidion
Small Ellipsidion
See-through Ellipsidion
Beautiful Ellipsidion
Balta Cockroach 1
Balta Cockroach 2
Balta Cockroach 3
Orange-brown Cockroach
Shelford's Cockroach
Surinam Cockroach
Bark cockroach
Mottled Cockroach
Wood Cockroach


Family Blattellidae - Blattellid Cockroaches

This page contains pictures and information about Cockroaches in family Blattellidae that we found in the Brisbane area, Queensland, Australia.
Nymph body length 10mm 
Comparing with other cockroach families, species in this family are relatively smaller in size. In some species, the females are wingless. Some are active during the day although most of them are nocturnal. They are usually found on trees and shrubs. They may be hiding in the used retreats built by caterpillars or spiders. They have long legs and run fast. 
There are many beautiful cockroaches in the family, however, the well known pest - the German Cockroaches (Blattella germanica) are also in this family.

Subfamily Pseudophyllodrominae - Beautiful Cockroaches

Blattellid Cockroaches of the genera Ellipsidon and Balta are some of the most colourful of Australian cockroaches and can be found on flowers or resting under the sun on leaves during the day. Their bright orange colours suggest membership in Muellerian mimicry complexes. 
Austral Ellipsidion Cockroach
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Ellipsidion australe, adult body length 18mm, nymph body length 16mm 
Not all cockroaches are ugly. Those Austral Ellipsidion Cockroaches look beautiful. Their body is brown to dark brown with a white pattern. Although most other cockroaches are active at night, this cockroach forages on foliage of shrubs during the daytime. They are believed feed on pollen, honeydew and mould fungus. They run away very fast when disturbed. They can be found in our backyards and bushlands in Brisbane. We have more information about this cockroach in the Austral Ellipsidion page.
Small Ellipsidion
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Ellipsidion humerale, adult body length 12mm, nymph body length 10mm
This is a small size cockroach. Body is orange-brown in colours with white patterns. The bottom of its abdomen is black with white strips. There is also a white line between its thorax and its wings. More information and pictures please click on here
See-through Ellipsidion
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Ellipsidion sp., adult body length 12mm, nymph body length 10mm
This Ellipsidion Cockroach looks very similar to the above species except the edges of thorax and wings are clean see-though. This cockroach is also common in Brisbane. More pictures and infromation can be found in this page
Beautiful Ellipsidion
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Ellipsidion bicolor, adult body length 15mm, nymph body length 10mm
This Ellipsidion Cockroach has a black pattern on its orange-brown wings. The edges of thorax and wings are clean see-though too. Please check this page for more information. 
Pale Ellipsidion 
Ellipsidion sp., body length 15mm
This cockroach looks like the German Cockroach. It has the distinct eye pattern on its thorax. It is pale brown in colour . Its wings are transparence. We found them easily in the bush on Moreton Island in mid-summer 2000. 

Balta Cockroach I
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Balta sp., body length 15mm
Balta Cockroach II
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Balta sp. body length 12mm 
Balta Cockroach III
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Balta sp. body length 12mm 

Subfamily Blattellinae 

Orange-brown Bush Cockroach
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Beybienkoa or Johnrehnia sp., body length 15mm
We found this cockroach once in Yimbin Park next to Bulimba Creek on Nov 2007. 
1. Blattaria - Cockroaches - Graeme's Insects of Townsville, Australia.
2. Beybienkoa sp. - BOLD Systems - Taxonomy Browser. 
Shelford's Cockroach
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Robshelfordia circumducta, body length 15mm 
Found this cockroach once near Buhot Creek on Daisy Hills on Feb 2011. 
1. Grasshopper Country - the Abundant Orthopteroid Insects of Australia, D Rentz, UNSW Press, 1996, p211.

Black Cockroach
? sp., length 10mm
This small winged cockroach is in dark brown colour found running on the wall outside my house on early summer 2000.

1. Insects of Australia, CSIRO, Division of Entomology, Melbourne University Press, 2nd Edition 1991, p320.
2. Grasshopper Country - the Abundant Orthopteroid Insects of Australia, D Rentz, UNSW Press, 1996, p211.
3. Northern Territory Insects, A Comprehensive Guide CD - Graham Brown, 2009.
4. Family BLATTELLIDAE - A.M.E. Roach & D.C.F. Rentz, CSIRO Entomology, Australian Faunal Directory, Australian Biological Resources Study. 

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Last updated: January 17, 2013.