This page contains pictures and information about Clam Lerp Insects
in family Psyllidae that we
found in the Brisbane area, Queensland, Australia.
- All species
in genus Hyalinaspis construct typical
clam-shell shape lerps and their host plants are
Eucalyptus. They construct a simple laminate lerp in bivalves shape.
Lerps may look similar in different species though it varies in shape and smoothness.
- Red Clam Lerp
- Hyalinaspis rubra, diameter 5mm
Clam Lerp Insects
are sap suckers and often aggregate in colonies. 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 and in bivalves shape.
- Clam Fibrous Lerp Insect
- Hyalinaspis sp., diameter 5mm
- This lerp insect build clam-shell cover as
well as fibrous
cover as the Glycaspis
lerp insect species in genus Hyalinaspis keep the excess excretion on
the ceiling of the cover. This lerp insect species keep the excess excretion
Please check this page for more
- Brown Clam Lerp Insect
- Hyalinaspis sp., diameter 8mm
is the largest Lerp Insect that we ever found. Also notice there
is some small young instars wandering on leaf without any cover. There are
more information and pictures in this page.
- White Clam Lerp Insect
- Hyalinaspis sp., diameter 6mm
- Photos were taken in Ford Road Conservation
Area on mar 2011. It was on the board leaf of a young gum tree. We checked
around and we did not see many of them on the tree.
- 1. Insects
of Australia - CSIRO, Division of Entomology, Melbourne University
Press, 2nd Edition 1991, p 449.
- 2. Family PSYLLIDAE - Australian Biological Resources Study, Australian Faunal Directory.
- 3. Psylloidea of South Australia - Morgan, F.D. ,Adelaide, South Australia, Government Printer, 1984.
- 4. Psyl'list - The World Psylloidea Database,
Ouvrard, D., searched on 1 October 2010.
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