Length 3.5-4mm. This insect was introduced to Australia as a biological control agent for Paterson's Curse.
Classification
from Australian Faunal Directory
Order Coleoptera - Beetles, 24955 named species in Australia
Superfamily Curculionoidea - Weevils, about 6500 named species in Australia
Family Curculionidae - typical weevils, 3685 named species in Australia
Subfamily Curculioninae - Round-eyed Weevils, 592 named species in Australia
Genus Mogulones
Species Mogulones larvatus