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Common Eucalypt Longicorn Beetle - Phoracantha semipunctata

FAMILY CERAMBYCIDAE

This page contains information and pictures about Common Eucalypt Longicorn Beetles that we found in the Brisbane area, Queensland, Australia.

Body length 25mm
 
This is a Australian native beetle and became a major pest of Eucalyptus plantations through out the world. 
 
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We first found this beetle attracted by window light to our backyard in early summer. When we search for information about this insect on the internet, we found this beetle is very famous. 
 
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Their larvae are the Eucalyptus wood borers which damage the timber. As the Australia native Eucalyptus trees become the major plants in plantations through out the world. This Common Eucalypt Longicorn Beetle became the pest in wood plantation industry too. 
 
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We sometimes found this beetle hiding under loose barks on Eucalyptus in Karawatha Forest.
 
The beetles lay eggs  in cracks of barks or under barks. Eggs are laid singly or in small batches. The larvae are Eucalyptus wood borers. The life cycles are from two to three years.  
 
Reference:
1. Cerambycidae, subfamily Cerambycinae - lifeunseen.com, by Nick Monaghan.
2. A guide to the Genera of Beetles of South Australia Part.7 - Matthews, E.G. & Reid C.A.M.Adelaide, Eureca Corporate Group. 1997,p10, Fig.16, 28.
3. common eucalypt longicorn - PaDIL, Pest and Diseases Image Library, 2006.
4. A Taxonomic Revision of the Australian Genus Phoracantha Newman (Coleoptera : Cerambycidae)
Qiao Wang, Invertebrate Taxonomy 9(5) 865 - 958.
5. The phoracanthine beetles (Coleoptera :Cerambycidae: Cerambycinae): taxonomic overview and generic relationships
Qiao Wang, Invertebrate Taxonomy, 1998, 12, 667684. 
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Last updated: March 10, 2012.