Immature stages of the genus Goliathus: A G. orientalis, left mandible, dorsal, medial and ventral aspect B G. orientalis, maxillar stridulatory teeth, lateral aspects C G. orientalis, detail of mala and unci, ventro-lateral aspect D G. orientalis, right mandible dorsal, medial and ventral aspect E G. albosignatus, thoracic spiracle F–H prothoracic leg (F G. albosignatus G G. goliatus H G. orientalis) I–J tibiotarsus and preatarsus (claw) (I G. albosignatus J G. goliatus K G. orientalis) L–N raster (L G. albosignatus M G. goliatus N G. orientalis). Scale bars: 1 mm (when not otherwise specified), 0.1 mm (A, B, C); 0.5 mm (D)