68 250 (l x ) 150 200 100 50 0 egg Instar 1 Instar 2 Instar 3 Prepupa Pupa Adult $X 4.5 *1 (% ( (3 H# ", Phyllotreta flexuosa (Illiger) (" 7" 9 # ' 25±2°C, 75±1%RH (* !0 &, & 2550) /