#641 - Polyphrades sp.
If I'm right in the ID, a serious agricultural pest, originally from South America. The larvae and adults are known to feed on almost 400 different species of plants, and can also damage subsurface irrigation. In this case, they were swarming on Jacksonia - the same tree as that brown Ancita earlier, in fact.
Baldivis, Perth
EDIT: I was wrong about the ID - a Polyphrades that only resembles Naupactus leucoloma, the White-fringed Weevil













