Melanacanthus scutellaris (Small brown bean bug)
Not to be confused with the Large Brown Bean Bug (LBBB), Riptortus serripes, which (apparently) does not occur in the CNM region. See https://www.business.qld.gov.au/industries/farms-fishing-forestry/agriculture/crop-growing/pests-field-crops/brown-bean-bug for an explanation of the differences.
Gallery
Regional distribution
Melanacanthus scutellaris is listed in the following regions: