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Species Periplaneta australasiae - Australian Cockroach

Unknown Bug - Periplaneta australasiae Help ID Roach - Periplaneta australasiae Roach ID  - Periplaneta australasiae Roach ID  - Periplaneta australasiae I think this is one big cockroach, but I'd like to know more as I'm not thrilled having them show up in my house. - Periplaneta australasiae Small Cockroach - Periplaneta australasiae Aquarium Guest - Periplaneta australasiae Periplaneta australasiae
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Blattodea (Cockroaches and Termites)
Superfamily Blattoidea
Family Blattidae
Genus Periplaneta
Species australasiae (Australian Cockroach)
Size
Up to 45 mm long.
Identification
Adult has thorax outlined in yellow with black/brown center marking somewhat like a sideways number eight. Differentiating Australian cockroaches from other species of Periplaneta requires identification of the narrow yellow mark along front outside edge of wings:


Immature Australian cockroaches are considerably more ornate than nymphs of other Periplaneta species found in North America:
Food
They are scavengers, they feed on almost everything
Remarks
A nocturnal species that favours tropical and subtropical climates.
See Also
The four species of Periplaneta cockroaches found in the US are easily confused. See the distinguishing characterstics of these species on the Periplaneta page.

Most notably, American Cockroaches have similar markings but lack the pale yellow edge on their wings.
Internet References
Bugs in Cyberspace has additional images.
The Scientific Pest Management Pest Database has a photo and info.
UNESCO has a great article about Major Pests of Libraries and discusses the various species of cockroachs including P. australasiae.