Western Australian Organism List

The Western Australian Organism List (WAOL) database allows you to search for organisms declared under the Biosecurity and Agriculture Management Act 2007 (BAM Act). It is not a complete list of all organisms in Western Australia or their attributes. Use the database to find the legal status of organisms, control requirements, declared pest species and more.

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A total of 14 results were found at 18:43 on 21st April 2024 when searching for Chionaspis.


  • Aulacaspis madiunensis (Zehntner, 1898) 
    Family: Diaspididae

    Synonym: Chionaspis madiunensis Zehntner, 1898.
  • Aulacaspis tegalensis (Zehntner, 1898) 
    Family: Diaspididae

    Synonyms: Aulacaspis major Rutherford, 1916, Aulacaspis rutherfordi Morrison, 1924, Aulacaspis tagalensis Velasquez & Rimando, 1969, Aulacaspis tegalensis Ferris, 1921, Chionaspis tegalensis Zehntner, 1898, Diaspis rutherfordi Box, 1953, Diaspis rutherfordii Rao & Sankaran, 1969,.... Common names: white stem scale, white scale of sugarcane, tagalog scale, Sugarcane scale.
  • Aulacaspis vitis (Green, 1896) 
    Family: Diaspididae

    Synonyms: Aulacaspis vitis Takagi, 1985, Chionaspis vitis Green, 1896, Phenacaspis vitis Takahashi, 1942, Poliaspis vitis Lindinger, 1943, Trichomytilus vitis Lindinger, 1933. Common names: hard scale, Armoured scale.
  • Chionaspis furfura (Fitch, 1857) 
    Family: Diaspididae

    Synonyms: Aspidiotus furfurus Fitch, 1857, Aspidiotus harrisii Walsh, 1868, Chionaspis furfura Cooley, 1899, Chionaspis furfurus Comstock, 1881, Chionaspis furfurus fulvus King, 1899, Coccus harrisii Walsh, 1866, Diaspis harrisii Signoret, 1877. Common names: scurfy scale, scurfy bark louse, Harris's bark-louse.
  • Chionaspis pinifoliae (Fitch, 1856) 
    Family: Diaspididae

    Synonyms: Aspidiotus pinifoliae Fitch, 1856, Chionaspis pinifolia Ruhl, 1913, Chionaspis pinifoliae Balachowsky, 1930, Chionaspis pinifoliae Comstock, 1881, Chionaspis pinifoliae semiaurea Cockerell, 1895, Leucaspis pinifoliae García.... Common name: pine needle scale.
  • Howardia biclavis (Comstock, 1883) 
    Family: Diaspididae

    Synonyms: Chionaspis biclavis Comstock, 1883, Chionaspis biclavis Maxwell-Lefroy, 1902, Chionaspis biclavis detecta Maskell, 1895, Howardia biclavis Berlese & Leonardi, 1896, Howardia biclavis Ramakrishna Ayyar, 1921, Howardia biclavis detecta Fernald,.... Common name: Mining scale.
  • Pinnaspis aspidistrae (Signoret, 1869) 
    Family: Diaspididae

    Synonyms: Chionaspis aspidistrae Signoret, 1869, Chionaspis brasiliensis Signoret, 1869, Chionaspis latus Cockerell, 1896. Common names: aspidistra scale, Fern scale, Brazilian snow-scale.
  • Pinnaspis buxi (Bouche, 1851) 
    Family: Diaspididae

    Synonyms: Aspidiotus buxi Bouché, 1851, HemiChionaspis pseudaspidistrae Green, 1916, Mytilaspis pandanni Comstock, 1881. Common names: small mussel scale, screw pine scale, pandanus scale, coconut scale, boxwood scale, bamboo mussel-scale.
  • Pinnaspis strachani (Cooley, 1889) 
    Family: Diaspididae

    Synonym: HemiChionaspis minor strachani Cooley, 1899. Common names: lesser snow scale, cotton white scale, Hibiscus snow scale.
  • Pseudaulacaspis cockerelli (Cooley, 1897) 
    Family: Diaspididae

    Synonyms: Chionaspis cockerelli Cooley, 1897, Chionaspis dilatata Green, 1899, Chionaspis inday Banks, 1906. Common names: magnolia white scale, false oleander scale, Oleander scale, Mango scale.
  • Pseudaulacaspis eugeniae (Maskell, 1892) 
    Family: Diaspididae

    Synonyms: Chionaspis eugeniae Maskell, 1892, Chionaspis eugeniae major Froggatt, 1914. Common names: white palm scale, waratah scale, Oleander scale.
  • Pseudaulacaspis prunicola (Maskell, 1895) 
    Family: Diaspididae

    Synonyms: Aulacaspis auranticolor (Cockerell, 1899), Aulacaspis pentagona auranticolor (Cockerell, 1899), Aulacaspis pentagona rubra (Maskell, 1898), Aulacaspis pentagona theae (Maskell, 1896), Chionaspis prunicola Maskell 1895, Diaspis amygdali rubra Maskell 1898, Diaspis amygdali theae.... Common name: white prunicola scale.
  • Unaspis citri (Comstock, 1883) 
    Family: Diaspididae

    Synonyms: Chionaspis citri Comstock, 1883, Dinaspis veitchi Green & Laing, 1923. Common names: white louse scale, Citrus snow scale.
  • Unaspis euonymi (Comstock, 1881) 
    Family: Diaspididae

    Synonyms: Chionaspis euonymi Comstock, 1881, Chionaspis evonymi Targioni Tozzetti, 1884, Unaspis euconymi Tao, 1999, Unaspis euonymi Ferris, 1937, Unaspis evonymi Bodenheimer, 1953, Unaspis hakayamai Borchsenius, 1966, Unaspis nakayamai Takahashi & Kanda, 1939. Common name: Euonymus scale.

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The classification of the organism.


The taxonomy ranking of the organism.

Local government area's

LGA names and boundaries as defined by Landgate (recent to Feb 2014).

Control categories

See the legend for control category meaning.

Keeping categories

See the legend for keeping category meaning.


Whether the organism is currently found in Western Australia.

BAM Act Definitions

Legal status

Each listed organism is declared under the Biosecurity Management act with certain legal requirements:

Declared Pest, Prohibited - s12

Prohibited organisms are declared pests by virtue of section 22(1), and may only be imported and kept subject to permits. Permit conditions applicable to some species may only be appropriate or available to research organisations or similarly secure institutions.

Permitted - s11

Permitted organisms must satisfy any applicable import requirements when imported. They may be subject to an import permit if they are potential carriers of high-risk organisms.

Declared Pest - s22(2)

Declared pests must satisfy any applicable import requirements when imported, and may be subject to an import permit if they are potential carriers of high-risk organisms. They may also be subject to control and keeping requirements once within Western Australia.

Permitted, Requires Permit - r73

Regulation 73 permitted organisms may only be imported subject to an import permit. These organisms may be subject to restriction under legislation other than the Biosecurity and Agriculture Management Act 2007. Permit conditions applicable to some species may only be appropriate or available to research organisations or similarly secure institutions.

Unlisted - s14

If you are considering importing an unlisted organism/s you will need to submit the name/s for assessment, as unlisted organisms are automatically prohibited entry into WA.

Control categories

Declared pests can be assigned to a C1, C2 or C3 control category under the Biosecurity and Agriculture Management Regulations 2013. Prohibited organisms can be assigned to a C1 or C2 control category, the control categories are:

C1 Exclusion

Organisms which should be excluded from part or all of Western Australia.

C2 Eradication

Organisms which should be eradicated from part or all of Western Australia.

C3 Management

Organisms that should have some form of management applied that will alleviate the harmful impact of the organism, reduce the numbers or distribution of the organism or prevent or contain the spread of the organism.


Unassigned: Declared pests that are recognised as having a harmful impact under certain circumstances, where their subsequent control requirements are determined by a Plan or other legislative arrangements under the Act.

Keeping categories

The Biosecurity and Agriculture Management Regulations 2013 (BAM Regs) specify prohibited and restricted keeping categories for the purposes of regulating organisms declared under the BAM Act. In regards to the purposes for which they can be kept, and the entities that can keep them for that purpose. A keeping permit is the administrative tool used to assign specific conditions to the keeping of an organism.

Prohibited keeping

Can only be kept under a permit for public display and education purposes, and/or genuine scientific research, by entities approved by the state authority.

Restricted keeping

Organisms which, relative to other species, have a low risk of becoming a problem for the environment, primary industry or public safety and can be kept under a permit by private individuals.

Exempt keeping

No permit or conditions are required for keeping. There may be other requirements under BAMA such as those required for entry of livestock, pigeons and doves, or waybill requirements for stock movement. An organism in the exempt keeping category may also be regulated by other legislation such as the Wildlife Conservation Act 1950 (WCA), administered by DPaW.

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If the species you are interested in is not listed on WAOL you may request to have it assessed. Please contact the Pest and Disease Information Service (PaDIS) on (08) 9368 3080 or email padis@dpird.wa.gov.au, and they will transfer you to the relevant person.