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.
Melanacanthus scutellaris is listed in the following regions:
Canberra & Southern Tablelands | New England
Maps
ANBG Bruce Ridge City Renewal Authority Area Katarina's garden MichaelBedingfied's Home Garden Mount Ainslie Mount Mugga Mugga Namadgi National Park Rugosa Umbagong District Park Yanununbeyan National ParkPlaces
Braddon, ACT Bungendore, NSW Coolatai, NSW Melba, ACT Primrose Valley, NSW Yass River, NSW