Two species have so far been of importance in south-east Queensland eucalypt plantations. These are similar in size, shape and colour and are often observed feeding together on the same trees. Adult beetles are large, ranging from 25-30 mm in length. Anoplognathus porosus Species in North Queensland are likely to differ. 4 Anoplognathus boisduvali Host Trees Christmas beetles are capable of attacking a wide range of Eucalyptus and other tree species.
Some eucalypts are more resistant to attack than others.
Return to Index Hybrids of the latter three species are currently being trialed for use in Queensland plantations and these are also susceptible to beetle attack . Distribution Christmas beetles are widely distributed throughout eastern and south eastern Australia. Beetles are more common in the coastal, higher rainfall areas. However, beetles can be found almost anywhere suitable breeding material, mainly native and introduced pasture grasses, exists. Distribution of individual species is not yet known in detail, but Anoplognathus porosus, A. Return to Index boisduvali and A. pallidicollis are the most commonly encountered species in south-west Queensland.