Morphology of dorsal side of shield bugs (Rhynchota: Pentatomoidea).A: head;  B: thorax;  C: abdomen. 1: claws; 2: tarsus; 3: tibia; 4: femur; 8: compound eye; 9: antenna; 10: clypeus;  23: laterotergites (connexivum); 25: pronotum; 26: scutellum; 27: clavus; 28: corium; 29: embolium; 30: membrane.