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Family
Coccidae
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This page contains pictures and information about Scale Insects in family Coccidae
that we
found in the Brisbane area, Queensland, Australia.
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 - Two Scale Insects of different species
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- The insects in this family are covered with wax secretion. The covering may
be scale-like or mussel-shaped. From their appearance they do not look like
insect. When they grow, most of their external organs, such as their legs, wings
and antenna, are reduced and become functionless.
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- The young scale insects have three pair of legs, known as 'crawlers'. It is
their responsibility for spreading and looking for suitable place to start new colony.
They are very small, although they have no wings, they can spread by wind
borne. When the females settle, they seldom move. Male adult scale insects are
winged.
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- Pink Wax Scale,
Red Wax Scale
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- Ceroplastes rubens, diameter 5mm
- Pink Wax Scale insects affect different type of board leaf plants. The insects live under the protected shell
cover which is their pink
waxy secretion. The insects suck the juice from plants. Please check this page
for more infromation.
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- Fig Wax Scale
 - Ceroplastes rusci, diameter 5mm
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- White Wax Scale, Soft Wax Scale
 - Ceroplastes destructor, diameter 5mm
- White Wax Scale looks very similar to the Pink Wax Scale above except it
is white in colour. Its scale is a little larger and much softer when touch.
Please check this page for more information.
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- Wattle Tick Scale
  - Cryptes baccatus diameter 5-10mm
- This Scale Insects form large ball shaped 'scale'. The pictures show ants are attending them for their honey drew. They are found on different
species of Acacia. More information and pictures can be found in this page.
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- Black Scale
 - Parasaissetia nigra sp. length 5mm
- In the above pictures there are the black adult females, some pale-yellow
slightly smaller later instars and some small pale-yellow crawlers (1st
instars). Black scale is parthenogenetic and there are no males. More
information and pictures can be found in this page.
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- Cotton Scale
 - Pulvinaria sp., diameter 8mm
- This Scale Insects can be find on Citrus
plants. The white and fluffy substance is the egg sac. Eggs are
laid into the soft wax, the female's body is lifted up. The second picture shows two
ladybird
larvae feeding on the scale insects on a Citrus leaf.
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- Scale Insect on Banksia leaf
 - ?sp., dia 5mm
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- Reference:
- 1. Insects
of Australia, CSIRO, Division of Entomology, Melbourne University
Press, 2nd Edition 1991, p 461.
- 2. Family COCCIDAE
- Australian Biological Resources Study, Australian Faunal Directory.
- 3. Psylloidea of South Australia - Morgan, F.D. ,Adelaide, South Australia, Government Printer, 1984.
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