This page contains pictures and information about Soft Bugs (Suborder
Sternorrhyncha) that we found in the Brisbane area, Queensland, Australia.
This soft body bugs suborder includes jumping plant lice, lerp insects, aphids, mealy bugs and scale
insects. All of them feed on plant sap. Some species adults are winged but
notably weak fliers. They are small in size. Most species
have the nymphal stages produce some form of protection, such as lerp, scales and
There are many family in this suborder but we have recorded vary few yet.
Please come back from time to time and see if we have put more records in this
- Members in this group are small in size. Adults have membranous wings and
thickened. They are capable of jumping. Young nymphs are usually free living
move over host plants to select suitable place to settle. There are five
nymphal stages. Females stridulate to attract males before mating. There are
different families and the largest one is Psyllidae.
They are plant sapper and mostly host-plant specific.
- Family Psyllidae
- Lerps Insects
- Lerps insects are sap suckers and often aggregate in
colonies. They insert their stylets into the plant and begin
feeding and constructing a lerp. Lerps are formed from the
honeydew excreted by the insects. Each species has its own
characteristic. They can be cones, univalves, bivalves or fan shapes.
- Family Aphididae - Aphids
- Aphids are small to very small in size. They are soft body and usually
wingless. There are the winged form with very thin membranous wings. Usually
their body is in pear-shaped. Most species have a pair of
posterior at the abdomen. Like most other bugs they are sap-sucking insects.
- Family Margarodidae
- Large Mealy Bugs
bugs or Mealybugs are sometimes found in group on plants indoor or outdoor.
Their bodies are flat with waxy excretions of white powdery substance. They
seldom move and feed in the same way as aphids and scale insects. Ladybirds and
lacewings are their predators.
Pseudococcidae - True Mealy Bugs
They are sometimes found in group on plants indoor or
outdoor. Their bodies are flat with waxy excretions of white powdery substance.
They seldom move or move very slowly and feed in the same way as aphids and scale insects.
- Family Eriococcidae
- Gall-inducing Scale Insect
The scale insects in this family induce distinctive woody gall on plants, either
occur on barks, stems or leaves. The insect lives inside from 1st
instars to adult. Female adult stays inside the gall while winged male
leaves its gall and look for the females. The galls induced by female and
male usually look very different.
Dactylopiidae - Cochineal Insect
- There are only one genus in Australia, they are introduced species.
- Family Coccidae - Scale Insects
- The insects in this family are covered with wax secretion. The covering may
be scale-like or mussel-shaped. Young scale insects are very small. When they
grow, most of their external organs, such as their legs, wings and antenna, are
reduced and become functionless.
Diaspididae - Armoured Scales
- They are also known as Hard Scales. They are elongated white scale. Females
have the hard scale cover. Males are free living.
- Unknown Soft Bugs
- Please advise
if you known the ID of those unknown Soft Bugs.
- Unknown Galls
- Please advise
if you known the ID of those Unknown Galls.
- 1. Insects
of Australia, CSIRO, Division of Entomology, Melbourne University
Press, 2nd Edition 1991, pp 443.
- 2. Suborder STERNORRHYNCHA
- Australian Biological Resources Study, Australian Faunal Directory.
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[ Psyllidae ] [ Aphididae ] [ Margarodidae ] [ Pseudococcidae ] [ Eriococcidae ] [ Dactylopiidae ] [ Coccidae ] [ Diaspididae ] [ Other Soft Bug families ] [ Unknown Galls ]