L: ca. 4 cmEusthenes robustus (Lepeletier & Serville, 1828) ???maybe it is this one:
www.heteroptera.fr/tessite/Eusthenes/E.robustus.htmlFamily: Tessaratomidae , Stl, 1864[det. "joe with a camera", 2011, based on this photo]Superfamily: PentatomoideaInfraorder: PentatomomorphaSuborder: HeteropteraOrder: HemipteraClass: Insectamore info:
en.wikipedia.org/wiki/TessaratomidaeIndonesia, Central Java, ca. 500m asl. vic. Gunug Lawu, 2011-03-31IMG_0500