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Family
Coccidae
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This page contains pictures and information about Black Scale that we
found in the Brisbane area, Queensland, Australia.
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 - Scale length 5mm
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- Black Scale
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- In the above picture there are the black adult females, some pale-yellow
slightly smaller later instars and some small pale-yellow crawlers (1st
instars). Nigra scale is parthenogenetic and they are no males.
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- Above pictures show the Black Scales and their predator Orange-spotted
Ladybird. We took those pictures on a Citrus plant. The ladybird
came to examine the Black Scale and encountered an ant. When the ladybirds
hunt for scale insects, they will encounter different species of ants.
Those ants come for the honey-dew from the scale insect. The ladybird helmet
shape of wing-covers protect them those ants. They sit with legs and
antenna hidden under the wing-covers. The ants just cannot do anything about
them.
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- Reference:
- 1. Insects of Australia and New Zealand - R. J. Tillyard, Angus
& Robertson, Ltd, Sydney, 1926, p174.
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