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- The beetles in this subfamily are usually large and
stout build. They are brightly coloured and some are metallic.
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- Adults feed and mate on tree during the day, lay eggs in soil or under
fallen bark and logs. Their life cycle is usually more than one year. Larvae
are C-shaped and soil-dwelling, feed on roots and other organic matter. They
pupate in cell deep in soil. When become adults, they stay remains in the
cell, wait until rain softens the soil and come out. This makes the adults
come out from soil in the same time, synchronizes as the mating flight.
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- Some genus in this subfamily are known as Christmas Beetles, huge number
appear during Christmas days in Australia. They hang on tree just like
the decorations on Christmas tree.
- Common Christmas Beetle
- Anoplognathus porosus, body length 25mm
- There are different species in the Anoplognathus genus all
commonly called Christmas Beetles. As their name implies, those beetles are most numerous around Christmas,
during mid-summer in Brisbane. They are metallic green in colour and with the
beautiful texture on their elytra. More information and pictures in this page.
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- Golden Brown Christmas Beetle
  - Anoplognathus sp. Length 25mm
- There are different species in the Anoplognathus genus all
commonly called Christmas Beetles. All of them have very large claws. Christmas
Beetles feed on different eucalypt trees. Some with distinct preferences on
some particular species. Please also visit this page
for more information and pictures on this Golden Brown Christmas Beetle.
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- Christmas Beetle III
  - Anoplognathus pallidicollis, body length 25mm
- This Christmas Beetle was found in Karawatha Forest feeding on gum leaves.
It was early December. This beetle looks like the A. porosus, could be
the same species.
- Reference:
- 1. Anoplognathus pallidicollis (Christmas beetle) - ECOWATCH, CSIRO
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- Black Nail Beetle
 - Repsimus manicatus, ANOPLOGNATHINI,
The beetle is dark bluish with purplish brown pronotum. The male has immensely
developed hind legs with large triangular tibiae. Larvae live in sandy soils
along river banks. More information and pictures can be found in this page.
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- Reference and Links:
- 1. Insects
of Australia, CSIRO, Division of Entomology, Melbourne University
Press, 2nd Edition 1991, p 630.
- 2. Insects of Australia and New Zealand - R. J. Tillyard, Angus
& Robertson, Ltd, Sydney, 1926, p228.
- 3. Beetles of Australia - Trevor J Hawkeswood, Angus & Robertson Publishers, 1987,
p31.
- 4. Christmas beetles - S. A. Lawson and J. King, DPI&F Queensland, 2006
- 5. RUTELINAE GALLERY - Marc Soula, Systematic Entomology on the Rutelini Tribe (Scarabaeidae Rutelinae).
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