Unknown

Some links: http://esperancewildlife.blogspot.ch/2011/06/longicorn-beetle-uracanthus-spp.html I do not like the black patches in Uracanthus, which this one has not, but could be from the same subfamily Cerambycinae?? http://commons.wikimedia.org/wiki/File:Cerambycidae.jpg http://www.cerambycoidea.com/forum/topic.asp?TOPIC_ID=12994 http://www.padil.gov.au/pests-and-diseases/Search?queryText1=&queryType1=All&sortType=ScientificName&viewType=Details&pageSize=10&page=1&taxonomy=Coleoptera:Cerambycidae:Cerambycinae http://www.brisbaneinsects.com/brisbane_longicorns/Cerambycinae.htm

Maybe search cerambycidae (longicorn beetles) in Western Australia