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Family Psyllidae
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This page contains pictures and information about Brown Clam Lerp Insects that we
found in the Brisbane area, Queensland, Australia.
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![](images/DSC_7422.jpg)
- Diameter
8mm
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![DSC_7411a.jpg (114452 bytes)](images/DSC_7411a_small.jpg)
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- This
is the largest Lerp Insect that we ever found. Lerps insects are
closely related with Scale Insects. Like Scale
Insects, they are sap suckers and often aggregate in colonies. Lerp-insects
appear to take the place of the Aphids on Eucalypt and
Acacia.
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![DSC_7428.jpg (198226 bytes)](images/DSC_7428_small.jpg)
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- Also notice there is some small young instars wandering on leaf without any
cover.
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![DSC_7443.jpg (195387 bytes)](images/DSC_7443_small.jpg)
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- They insert their stylets, or mouthparts, into the plant and begin feeding
and constructing a lerp, the protection cover. Lerps are formed from the
sugar and wax excreted by the insects. Those materials harden on contact
with air to form the protection. Lerps vary in size with shape of shell and
dark brown in colours.
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![DSC_7459a.jpg (207057 bytes)](images/DSC_7459a_small.jpg)
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Host Plant
![DSC_7492.jpg (195291 bytes)](images/DSC_7492_small.jpg)
- Host plant, Silver-leafed Ironbark Gumtree, Eucalyptus
melanophloia
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- Reference:
- 1. Psylloidea of South Australia - Morgan, F.D. ,Adelaide, South Australia, Government Printer,
1984, plate 16,17.
- 2. Additional
information on the Australian genera of the family Psyllidae (Hemiptera:
Homoptera) - KL Taylor, Australian Journal of Zoology 8(3) 383 - 391,
1960.
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