(after Fletcher 2009): The family is most easily recognised in Australia by the presence of heavy granulations on the outer claval vein (Vein 1A). Some derbids also have granulations on this vein but these can be differentiated from Meenoplidae by the length of the apical segment of the rostrum which is about as long as wide in derbids but much longer than wide in other fulgoroid families.
Fletcher MJ
(2009):
Identification keys and checklists for the leafhoppers, planthoppers and their relatives occurring in Australia and neighbouring areas (Hemiptera: Auchenorrhyncha). WEB